Synonyms|1.4kAntonyms|486|Broader|22Narrower|81Related|879
1
thrive(verb, stop, fail)
1
toughen
1
widen(reduce, narrow)
1
worsen(verb, increase, extend)
0
add together
0
add up(expression, stop, halt)
0
adding up(expression, stop, halt)
0
adjoin
0
admit
0
advancement
0
aggrandizement
0
amount
0
amplification
0
amplifying
0
annex
0
appear
0
append
0
appreciation
0
apprise
0
apprize
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APASmart Define. (2016). lessen thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/lessen/thesaurus/antonyms
ChicagoSmart Define. 2016. "lessen thesaurus" https://smartdefine.org/lessen/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, lessen thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/lessen/thesaurus/antonyms>.
MLASmart Define. "lessen thesaurus" 31 January 2016. Web. 24 September 2026. <https://smartdefine.org/lessen/thesaurus/antonyms>