387 entries under verb topic. ×

4
dope(quiet, diminish, impair, stifle)
4
enervate(upset, trouble, reduce, disturb)
4
enfeeble
4
etiolate
4
hebetate(surprise, awareness, astonish, astound)
4
lighten(check, reduce, release, ease)
4
obfuscate(clear, reduce, lower, fade)
4
prostrate(adjective, disable, dejection)
4
quieten(calm, quiet, diminish, suppress)
4
repress(quiet, diminish, impair, stifle)
4
retard(quiet, diminish, impair, stifle)
4
rough(adjective, simple, nasty, low)
4
sadden(activity, upset, trouble, reduce)
4
silence(calm, quiet, suppress, subdue)
4
slacken(stop, reduce, release, fall)
4
tire(quiet, diminish, impair, stifle)
4
wash out(expression, dim, dissolve, lighten)
3
anaesthetize
3
blanch(reduce, diminish, dim, pale)
3
bleach(dim, pale, dissolve, lighten)
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APASmart Define. (2016). dull thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/dull/thesaurus/synonyms
ChicagoSmart Define. 2016. "dull thesaurus" https://smartdefine.org/dull/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/dull/thesaurus/synonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/dull/thesaurus/synonyms>