20 entries under smart topic. ×

19
intelligent(adjective, mind, behavior, disability, foolishness)
18
active(adjective, fast, fixed, afraid)
17
sharp(adjective, active, fast, cutting)
11
lively(adjective, active, fast, lethargic)
10
keen(adjective, calm, sharp, indifferent)
10
luminous(adjective, bright, active, fast)
9
lustrous(adjective, active, fast, shining)
8
exciting(adjective, active, fast)
8
clear(adjective, bright, dirty, active)
7
vivacious(adjective, lively, active, fast)
6
pointed(verb, adjective, active, fast)
6
quick(adjective, active, fast)
6
light(verb, adjective, obscure, active)
6
sensitive(adjective, active, fast)
5
fast(adjective, active)
5
knifelike(adjective, active, fast, wornout)
3
eventful(adjective, active, fast, significant)
3
witty(adjective, active, fast)
1
serrated(adjective, active, fast)
0
cognizant(adjective, active, fast)
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APASmart Define. (2016). dull thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dull/thesaurus/antonyms
ChicagoSmart Define. 2016. "dull thesaurus" https://smartdefine.org/dull/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dull/thesaurus/antonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/dull/thesaurus/antonyms>