2
unglued(adjective, wild, silly, foolish, mad)
2
unmindful(adjective, careless, indifferent, unconcerned, remote)
2
unobservant(adjective, careless, indifferent, apathetic, unconcerned)
2
unscrewed(unstable, disturbed, distracted, disorganized, perturbed)
2
unthinking(adjective, dull, careless, indifferent, apathetic)
2
unwitting(adjective, careless, unconcerned, sloppy, slack)
2
unzipped(silly, foolish, mad, insane, distracted)
2
wacky(adjective, silly, foolish, crazy, mad)
2
woolgathering(adjective, careless, remote, vague, sloppy)
1
abashed(distracted, dazed, disorganized, perturbed, perplexed)
1
absentminded(adjective, careless, indifferent, apathetic, unconcerned)
1
absorbed(careless, remote, distracted, heedless, scatterbrained)
1
addled(distracted, untidy, dazed, disorganized, perturbed)
1
addlepated(frantic, untidy, hacked, worked-up, uncombed)
1
amateur(inadequate, useless, inept, unable, unskilled)
1
amateurish(inadequate, useless, inept, unable, unskilled)
1
amnemonic(adjective, careless, vague, sloppy, slack)
1
amnesic(adjective, careless, unconcerned, sloppy, slack)
1
apathetic(adjective, careless, indifferent, distracted, negligent)
1
ape(silly, foolish, crazy, mad, insane)
13 years ago|3.4k views|share |citing 
APASmart Define. (2013). out to lunch thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/out_to_lunch/thesaurus/synonyms
ChicagoSmart Define. 2013. "out to lunch thesaurus" https://smartdefine.org/out_to_lunch/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, out to lunch thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>.
MLASmart Define. "out to lunch thesaurus" 17 May 2013. Web. 29 September 2026. <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>