3
unlettered(adjective, characteristic, stupidity, ignorance)
3
unread(adjective, characteristic, stupidity, ignorance)
3
unreasonable(adjective, characteristic, stupidity, ignorance)
3
unschooled(adjective, characteristic, stupidity, ignorance)
3
unstylish(adjective, characteristic, stupidity, ignorance)
3
untaught(adjective, characteristic, stupidity, ignorance)
3
unthinking(adjective, characteristic, stupidity, ignorance)
3
untrained(adjective, characteristic, stupidity, ignorance)
3
unwitting(adjective, characteristic, stupidity, ignorance)
2
half-assed
2
brain-dead
2
goofy
2
over smart
2
real
2
simple
2
sincere
2
slow-witted
2
softheaded
2
unperceptive
1
soft
10 years ago|4.4k views|share |citing 
APASmart Define. (2016). shrewd thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/shrewd/thesaurus/antonyms
ChicagoSmart Define. 2016. "shrewd thesaurus" https://smartdefine.org/shrewd/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, shrewd thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/shrewd/thesaurus/antonyms>.
MLASmart Define. "shrewd thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/shrewd/thesaurus/antonyms>