94 entries under verb topic. ×

1
dilute(weaken, thinner)
1
disprove(reduce, destroy, agree, halt)
1
flag(decline, fall)
1
lower(reduce, destroy, halt, rise)
1
relapse(rise, improve, weaken, deteriorate)
1
relax
1
shatter
1
sink(increase, raise, deteriorate)
1
spend
1
stagnate(help, deteriorate)
1
undercut
1
undo
1
unsettle
1
water down(expression, dilute, thicken)
1
wilt
0
agitate
0
anticipate
0
concuss
0
condense(reduce, destroy, halt, slow)
0
contradict(reduce, destroy, halt, slow)
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APASmart Define. (2016). strengthen thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/strengthen/thesaurus/antonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/antonyms (accessed October 1, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/strengthen/thesaurus/antonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 1 October 2026. <https://smartdefine.org/strengthen/thesaurus/antonyms>