| billionth | (adjective) the ordinal number of one billion in counting order | - |
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| both | (adjective) (used with count nouns) two considered together; the two | - |
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| couth | (adjective) (used facetiously) refined and well-mannered | - |
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| eighteenth | (adjective) coming next after the seventeenth in position | Synonyms: 18th |
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| eighth | (adjective) coming next after the seventh and just before the ninth in position | Synonyms: 8th |
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| eightieth | (adjective) the ordinal number of eighty in counting order | Synonyms: 80th |
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| eleventh | (adjective) coming next after the tenth and just before the twelfth in position | Synonyms: 11th |
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| fifteenth | (adjective) coming next after the fourteenth and just before the sixteenth in position | Synonyms: 15th |
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| fifth | (adjective) coming next after the fourth and just before the sixth in position | Synonyms: 5th |
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| fiftieth | (adjective) the ordinal number of fifty in counting order | Synonyms: 50th |
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| fortieth | (adjective) the ordinal number of forty in counting order | Synonyms: 40th |
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| fourteenth | (adjective) coming next after the thirteenth in position | Synonyms: 14th |
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| fourth | (adjective) coming next after the third and just before the fifth in position or time or degree or magnitude | Synonyms: 4th, quaternary |
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| hiplength | (adjective) extending to or just over the hips | Synonyms: hip-length |
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| hundredth | (adjective) the ordinal number of one hundred in counting order | Synonyms: 100th, centesimal |
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| interfaith | (adjective) involving persons of different religious faiths | - |
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| loath | (adjective) (usually followed by `to') strongly opposed | Synonyms: antipathetic, antipathetical, averse, indisposed, loth |
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| (adjective) unwillingness to do something contrary to your custom | Synonyms: loth, reluctant |
| loth | (adjective) (usually followed by `to') strongly opposed | Synonyms: antipathetic, antipathetical, averse, indisposed, loath |
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| (adjective) unwillingness to do something contrary to your custom | Synonyms: loath, reluctant |
| mammoth | (adjective) so exceedingly large or extensive as to suggest a giant or mammoth | Synonyms: gigantic |
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| millionth | (adjective) the ordinal number of one million in counting order | - |
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| nineteenth | (adjective) coming next after the eighteenth in position | Synonyms: 19th |
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| ninetieth | (adjective) the ordinal number of ninety in counting order | Synonyms: 90th |
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| ninth | (adjective) coming next after the eighth and just before the tenth in position | Synonyms: 9th |
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| north | (adjective) situated in or facing or moving toward or coming from the north | - |
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| nth | (adjective) last or greatest in an indefinitely large series | Synonyms: n-th |
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| quadrillionth | (adjective) the ordinal number of one quadrillion in counting order | - |
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| quintillionth | (adjective) the ordinal number of one quintillion in counting order | - |
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| seventeenth | (adjective) coming next after the sixteenth in position | Synonyms: 17th |
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| seventh | (adjective) coming next after the sixth and just before the eighth in position | Synonyms: 7th |
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| seventieth | (adjective) the ordinal number of seventy in counting order | Synonyms: 70th |
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| sixteenth | (adjective) coming next after the fifteenth in position | Synonyms: 16th |
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| sixth | (adjective) coming next after the fifth and just before the seventh in position | Synonyms: 6th |
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| sixtieth | (adjective) the ordinal number of sixty in counting order | Synonyms: 60th |
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| smooth | (adjective) having a surface free from roughness or bumps or ridges or irregularities | - |
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| (adjective) of the margin of a leaf shape; not broken up into teeth | - |
| (adjective) (music) without breaks between notes; smooth and connected | Synonyms: legato |
| (adjective) of motion that runs or flows or proceeds without jolts or turbulence | - |
| (adjective) (of a body of water) free from disturbance by heavy waves | Synonyms: placid, quiet, still, tranquil, unruffled |
| (adjective) smoothly agreeable and courteous with a degree of sophistication | Synonyms: bland, politic, suave |
| (adjective) lacking obstructions or difficulties | - |
| (adjective) smooth and unconstrained in movement | Synonyms: fluent, fluid, liquid |
| south | (adjective) situated in or facing or moving toward or coming from the south | - |
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| tenth | (adjective) coming next after the ninth and just before the eleventh in position | Synonyms: 10th |
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| thirteenth | (adjective) coming next after the twelfth in position | Synonyms: 13th |
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| thirtieth | (adjective) coming next after the twenty-ninth in position | Synonyms: 30th |
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| thousandth | (adjective) the ordinal number of one thousand in counting order | Synonyms: 1000th |
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| trillionth | (adjective) the ordinal number of one trillion in counting order | - |
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| twelfth | (adjective) coming next after the eleventh and just before the thirteenth in position | Synonyms: 12th |
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| twentieth | (adjective) coming next after the nineteenth in position | Synonyms: 20th |
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| umpteenth | (adjective) last in an indefinitely numerous series | Synonyms: umptieth, umteenth |
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| umptieth | (adjective) last in an indefinitely numerous series | Synonyms: umpteenth, umteenth |
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| umteenth | (adjective) last in an indefinitely numerous series | Synonyms: umpteenth, umptieth |
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| uncouth | (adjective) lacking refinement or cultivation or taste | Synonyms: coarse, common, rough-cut, vulgar |
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| unsmooth | (adjective) having or caused by an irregular surface | Synonyms: rough |
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| worth | (adjective) having a specified value | - |
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| (adjective) (often used ironically) worthy of being treated in a particular way | Synonyms: deserving |
| wroth | (adjective) vehemently incensed and condemnatory | Synonyms: wrathful, wrothful |
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| zeroth | (adjective) preceding even the first | - |
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