Synonyms of forgetful

1 Syllable

lax, slack

2 Syllables

dreamy, laxer, absent, moony, mooning, sloppy, heedless, remiss, mindless, discinct

3 Syllables

wrapped-up, birdbrained, distracted, amnesic, nitwitted, oblivious, neglectful, unwitting, unmindful, defaultant, nirvanic, careless, negligent, abstracted, airheaded, bemused, inconscient, preoccupied

4 Syllables

woolgathering, unbothered, nonspecific, unaware, ungrateful, amnemonic, unconcerned, absent-minded, scatterbrained

5 Syllables

unrecognizing, inattentive, pococurante