| Word | Definitions | Synonyms |
|---|---|---|
| unnaturalness | (noun) the quality of being unnatural or not based on natural principles | - |
| unneighborliness | (noun) an unneighborly disposition | - |
| unnie | (noun) a female who is older than the speaker, especially used by Korean female | - |
| unnilquadium | (noun) a radioactive transuranic element which has been synthesized | Synonyms: atomic number 104, element 104, Rf, rutherfordium, Unq |
| unnoticeableness | (noun) the quality of being not easily noticed | - |