71 entries under verb topic. ×

3
prolong(increase, extend)
3
redouble
3
strengthen(increase, reduce, destroy, halt)
2
add(increase, adjoin)
2
aggravate
2
dilate(cut, contract, stretch, widen)
2
multiply(increase, destroy, decrease, reproduce)
2
rise(stop, end, increase, extend)
2
surge
1
accelerate
1
acknowledge
1
bolster
1
build up(expression, hurt, discourage, amplify)
1
distinguish
1
exacerbate
1
exalt
1
fester(inflamed, intensify)
1
prefer(reject, refuse)
1
stress(tone, reduction, understatement)
1
stretch(stop, close, increase, extend)
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APASmart Define. (2016). lessen thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/lessen/thesaurus/antonyms
ChicagoSmart Define. 2016. "lessen thesaurus" https://smartdefine.org/lessen/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, lessen thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/lessen/thesaurus/antonyms>.
MLASmart Define. "lessen thesaurus" 31 January 2016. Web. 27 September 2026. <https://smartdefine.org/lessen/thesaurus/antonyms>