16
half-assed
5
unscholarly(adjective, adverb, stupid, studious)
4
ignorant(adjective, stupid)
3
fatuous
3
illiterate
3
silly
3
uneducated(adjective, stupid)
2
lowbrow(noun, adjective)
2
uninstructed
2
unlearned
2
unlettered
2
unschooled
2
untaught
2
untutored
1
benighted
1
birdbrained
1
boneheaded
1
brain-dead
1
clueless
1
dim-witted
11 years ago|1k views|share |citing 
APASmart Define. (2015). scholarly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/scholarly/thesaurus/antonyms
ChicagoSmart Define. 2015. "scholarly thesaurus" https://smartdefine.org/scholarly/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, scholarly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/scholarly/thesaurus/antonyms>.
MLASmart Define. "scholarly thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/scholarly/thesaurus/antonyms>