1
careless
1
cock-eyed
1
confused
1
crack-brained
1
crackpot
1
devil-may-care
1
diffuse(adjective, ignore, forget, vague, absent)
1
disoriented(adjective, ignore, forget, vague, absent)
1
dissipated(adjective, ignore, forget, vague, absent)
1
distracted(adjective, ignore, forget, vague, absent)
1
distrait(adjective, ignore, forget, vague, absent)
1
dopey
1
dopy
1
dotty
1
feather-headed
1
fool(adjective, zany, loony, comical, schtick)
1
forgetful(adjective, ignore, forget, vague, absent)
1
halfwitted
1
ill-advised
1
imbecile
13 years ago|2.7k views|share |citing 
APASmart Define. (2013). hare-brained thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hare-brained/thesaurus/synonyms
ChicagoSmart Define. 2013. "hare-brained thesaurus" https://smartdefine.org/hare-brained/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, hare-brained thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hare-brained/thesaurus/synonyms>.
MLASmart Define. "hare-brained thesaurus" 19 May 2013. Web. 22 September 2026. <https://smartdefine.org/hare-brained/thesaurus/synonyms>