66 entries under adjective topic. ×

1
reflective(severe, sober, serious, somber)
1
set(severe, humourless)
1
unfestive(unhappy, sadness, aloof, grey)
1
unlively(unhappy, sadness, aloof, grey)
1
wistful(unhappy, sadness, aloof, grey)
0
acrimonious
0
bound(severe, humourless)
0
businesslike(severe, humourless)
0
deadpan
0
deliberate(severe, sober, serious, somber)
0
determined(severe, humourless)
0
dull(stale, smoky, airless)
0
forbidding
0
formidable
0
genuine(severe, humourless)
0
honest(severe, humourless)
0
insipid
0
intent(severe, humourless)
0
long-faced(severe, humourless)
0
resolute(severe, humourless)
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APASmart Define. (2015). humorless thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/humorless/thesaurus/synonyms
ChicagoSmart Define. 2015. "humorless thesaurus" https://smartdefine.org/humorless/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, humorless thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/humorless/thesaurus/synonyms>.
MLASmart Define. "humorless thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/humorless/thesaurus/synonyms>