Adjective worthless; unfounded
Synonyms: bad, baseless, fallacious, false, ill-founded, illogical, inoperative, irrational, mad, not binding, not working, nugatory, null, null and void, reasonless, sophistic, unreasonable, unreasoned, unscientific, unsound, untrue, void, wrong
Antonyms: sound, valid, worthwhile, worthy
Adjective sickly
Synonyms: ailing, bedridden, below par, debilitated, disabled, down, feeble, frail, ill, infirm, laid low, on the sick list, out of action, peaked, poorly, run-down, sick, weak
Antonyms: healthy, well