6
irradiate(verb, light, flash, animate, shine)
6
relax(verb, calm, quiet, help, reduce)
6
slacken(verb, calm, drop, quiet, help)
6
weaken(verb, drop, dull, cut, check)
5
bleach(verb, dull, fade, white, whitewash)
5
curtail(verb, drop, cut, decline, reduce)
5
dawn(verb, start, begin)
5
disembarrass(verb, clear, facility, rid)
5
encourage(verb, support, help, promote, improve)
5
gleam(noun, verb, brighten, illuminate)
5
lighten up(verb, expression, phrasal verb, improve, refresh)
5
make lighter(verb, expression, idiom, reduce, ease)
5
remove(verb, drop, reduce, discharge, ease)
5
tone down(verb, expression, calm, dull, check)
4
attenuate(verb, decline, reduce, ease, diminish)
4
buoy(verb, reduce, ease, lessen, lift)
4
cheer up(verb, expression, phrasal verb, improve, animate)
4
contract(verb, drop, cut, decline, reduce)
4
dilute(verb, decline, reduce, ease, moderate)
4
disengage(verb, calm, quiet, help, clear)
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APASmart Define. (2015). lighten thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lighten/thesaurus/synonyms
ChicagoSmart Define. 2015. "lighten thesaurus" https://smartdefine.org/lighten/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lighten thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lighten/thesaurus/synonyms>.
MLASmart Define. "lighten thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/lighten/thesaurus/synonyms>