1
raise(verb, upset, rise, extend)
1
regulate(verb, damage, neglect, obey)
1
reinforce(verb, hurt, reduce)
1
rise(noun, verb, upset, extend, contract)
1
surge
1
temper(verb, upset, extend, intensify, harden)
1
thicken(reduce, thin)
0
abrasive
0
accentuate
0
acclimate
0
accretion
0
acculture
0
accumulation
0
acetify
0
acidify
0
acidulate
0
add
0
addition
0
adjust
0
advance
11 years ago|2k views|share |citing 
APASmart Define. (2015). soften thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/soften/thesaurus/antonyms
ChicagoSmart Define. 2015. "soften thesaurus" https://smartdefine.org/soften/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, soften thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/soften/thesaurus/antonyms>.
MLASmart Define. "soften thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/soften/thesaurus/antonyms>