10
fool(noun, person, simple, prompt, stupid)
9
dolt(noun, simple, fool, innocent, jerk)
8
simpleton(noun, simple, fool, innocent, jerk)
7
dunce(noun, person, simple, fool, innocent)
7
halfwit(noun, simple, fool, silly, innocent)
7
idiot(noun, simple, fool, innocent, jerk)
7
imbecile(noun, person, simple, fool, innocent)
7
moron(noun, simple, fool, innocent, jerk)
7
ninny(noun, simple, fool, silly, innocent)
6
nitwit(noun, simple, fool, innocent, jerk)
5
clod(noun, simple, fool, innocent, jerk)
5
dunderhead(noun, simple, fool, silly, innocent)
5
loon(noun, simple, fool, innocent, jerk)
4
addle-head
4
addlehead
4
ass(noun, simple, fool, innocent, jerk)
4
blockhead(noun, simple, fool, innocent, jerk)
4
bonehead(noun, simple, innocent, jerk, clown)
4
chump(noun, sucker, boob)
4
dope(noun, simple, fool, innocent, jerk)
<1234510>
11 years ago|2.3k views|share |citing 
APASmart Define. (2015). birdbrain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/birdbrain/thesaurus/synonyms
ChicagoSmart Define. 2015. "birdbrain thesaurus" https://smartdefine.org/birdbrain/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, birdbrain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/birdbrain/thesaurus/synonyms>.
MLASmart Define. "birdbrain thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/birdbrain/thesaurus/synonyms>