The Oxford Thesaurus An A-Z Dictionary of Synonyms - baseэ adj.

1) low, undignified, cowardly, selfish, mean, despicable, contemptible, filthy, evil: He must have had some base motive in revealing to her what Martha had said. 2) degraded, degrading, menial, inferior, mean, unworthy, lowly, low, grovelling, servile, slavish, subservient, downtrodden, abject, miserable, wretched, sordid, undignified, ignoble, dishonourable, disreputable, vile, scurrilous, wicked, Colloq infra dig: Foolish sinners will submit to the basest servitude, and be attendants of swine. 3) mean, cheap, sorry, common, poor, shabby, shoddy: He cast off his base attire, revealing a splendid suit of armour like burnished gold. 4) sordid, offensive, lewd, lascivious, obscene, profane, rude, ribald, unseemly, vulgar, coarse, rude, dirty, indecent, evil-minded, filthy, pornographic: The entertainment in that theatre caters to the basest appetites. 5) poor, shoddy, cheap, fake, pinchbeck, inferior, counterfeit, fraudulent, debased, forged, spurious, worthless, bad: Her jewels look valuable but are, in fact, made of base materials. 6) wicked, evil, wretched, corrupt, shameful, currish, loathsome, scurvy, insufferable, villainous: They were labelled as base infidels and treated with contempt and cruelty.