70 entries under disappoint topic. ×

13
fail(verb, upset, abandon, neglect, deceive)
11
lower(verb, adjective, drop, decline, drive)
10
take down(verb, expression, phrasal verb, drop, reduce)
8
depress(verb, adjective, drop, decline, drive)
7
betray(verb, attack, fail, abandon, neglect)
7
deceive(verb, upset, attack, fail, abandon)
7
dissatisfy(verb, upset, cause, fail, happy)
6
disillusion(verb, upset, fail, deceive, thwart)
5
pull down(verb, expression, phrasal verb, drop, press)
4
desert(verb, fail, abandon, neglect, deceive)
4
thwart(verb, upset, fail, deceive, baffle)
3
abandon(verb, attack, fail, neglect, deceive)
3
cast down(verb, expression, upset, drop, decline)
3
delude(verb, upset, fail, abandon, cross)
3
tease(verb, upset, bother, disturb, fail)
2
baffle(verb, adjective, upset, fail, deceive)
2
balk(verb, adjective, upset, fail, deceive)
2
chagrin(verb, upset, bother, disturb, fail)
2
circumvent(verb, upset, fail, deceive, thwart)
2
dash(verb, upset, fail, deceive, thwart)
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APASmart Define. (2015). let down thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/let_down/thesaurus/synonyms
ChicagoSmart Define. 2015. "let down thesaurus" https://smartdefine.org/let_down/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, let down thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/let_down/thesaurus/synonyms>.
MLASmart Define. "let down thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/let_down/thesaurus/synonyms>