Englishbase2
adjective
some of these struggles have been inspired by base motives:
sordid, improper, low, mean, bad, wrong, evil, wicked, iniquitous, immoral, sinful;
unscrupulous, unprincipled, unseemly, unsavory, shoddy, squalid, vile, foul, vulgar, tawdry, cheap, low-minded, debased, degenerate, depraved, corrupt, reprobate, dissolute, dishonest, dishonorable, disreputable, despicable, discreditable, contemptible, petty, ignominious, ignoble, shameful, wretched, scandalous, infamous, abhorrent, abominable, disgusting.
▷antonyms good, lofty.