5
asinine
5
beery
5
buffoonish
5
callow(adjective, youth)
5
cockeyed(adjective, knowledge, ability, informal)
5
daffy(strange, silly, stupid, senseless, ridiculous)
5
flowing(liquid, fluidity)
5
green(adjective, youth)
5
harebrained(adjective, knowledge, ability)
5
mad(adjective, knowledge, ability)
5
nutty(strange, silly, stupid, senseless, ridiculous)
5
powerful
5
tender(adjective, soft, sweet, sensitive, emotional)
5
wet
5
whacky
4
budding(adjective, youth)
4
cloying(noun, adjective, emotional, sloppy, syrupy)
4
dizzy
4
dumb
4
fluent
10 years ago|15k views|share |citing 
APASmart Define. (2016). sappy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sappy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sappy thesaurus" https://smartdefine.org/sappy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sappy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sappy/thesaurus/synonyms>.
MLASmart Define. "sappy thesaurus" 2 March 2016. Web. 22 September 2026. <https://smartdefine.org/sappy/thesaurus/synonyms>