5
nerd(informal, call, noun, person, fool)
5
nincompoop(noun, ability, fool)
5
sap(noun, informal, fool)
5
saphead
5
schmuck(noun, simple, slang, ability, prompt)
5
simple(noun, adjective, weak, ability, fool)
4
asinine(adjective, foolish)
4
balmy(adjective, knowledge, slang, ability)
4
buffoon(noun, fool)
4
donkey(noun, fool)
4
fatuous(adjective, foolish)
4
foolish(adjective, knowledge, ability)
4
muggins
4
nonsensical(adjective, knowledge, ability, foolish)
4
senseless(adjective, foolish)
4
simpleton(noun, ability, fool)
4
stupid(adjective, informal, foolish)
4
turkey(noun, simple, slang, ability, prompt)
3
brainless(adjective, foolish)
3
clown(noun, fool)
11 years ago|10k views|share |citing 
APASmart Define. (2015). tomfool thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tomfool/thesaurus/synonyms
ChicagoSmart Define. 2015. "tomfool thesaurus" https://smartdefine.org/tomfool/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, tomfool thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tomfool/thesaurus/synonyms>.
MLASmart Define. "tomfool thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/tomfool/thesaurus/synonyms>