| Word | Definitions | Synonyms |
|---|---|---|
| base | (adjective) serving as or forming a base | Synonyms: basal |
| (adjective) debased; not genuine | - | |
| (adjective) having or showing an ignoble lack of honor or morality | Synonyms: mean, meanspirited | |
| (adjective) illegitimate | Synonyms: baseborn | |
| (adjective) (used of metals) consisting of or alloyed with inferior metal | - | |
| (adjective) of low birth or station (`base' is archaic in this sense) | Synonyms: baseborn, humble, lowly | |
| (adjective) not adhering to ethical or moral principles | Synonyms: immoral |