halfwitted
Not very bright
Halfwitted means foolish or stupid, suggesting someone operating with only half their mental capacity.
The term is mildly insulting but old-fashioned: Some halfwitted clerk lost my paperwork.
A halfwit is the noun form—a foolish person.
The word implies dim-wittedness rather than clinical intellectual disability.
Lacking intelligence or sense
- idioticExtremely lacking intelligence
- moronicExtremely foolish or senseless
- dopeyStupidly slow, half-asleep
- thickHaving great depth
dense · obtuse · simpleminded · brainless · mindless · vacuous · doltish · blockheaded
Frivolous or absurd
- absurdWildly illogical
- ludicrousAbsurdly unreasonable or inappropriate
- inaneLacking sense or meaning
- senselessLacking reason or awareness
irrational · unwise · imprudent · harebrained · cockamamie · asinine · preposterous · nonsensical
witless
Lacking intelligence or sense
- idioticExtremely lacking intelligence
- moronicExtremely foolish or senseless
- dopeyStupidly slow, half-asleep
thick · dense · obtuse · simpleminded · brainless · mindless · vacuous · doltish · blockheaded · boneheaded
silly
Frivolous or absurd
senseless · irrational · unwise · imprudent · harebrained · cockamamie · asinine · preposterous · nonsensical · ridiculous
gullible
Easily deceived
- credulousProne to blind trust
- unsophisticatedLacking refinement or complexity
- ingenuousInnocently frank and trusting
callow · green · inexperienced · unworldly · innocent · trusting · childlike · artless · simple · guileless