40 entries under adjective topic. ×

3
deadpan(dull, dead, impassive, unresponsive)
3
expressionless(person, dull, feelings, dead)
3
unsmiling
2
blank(person, dull, feelings, dead)
2
earnest
2
grave
2
grim
2
sedate
2
serious
2
sober
2
solemn
2
sombre
2
thoughtful
2
unresponsive(person, feelings, emotions)
1
adamant(person, feelings, emotions)
1
apathetic(person, feelings, emotions)
1
callous(person, feelings, emotions)
1
chilly(person, feelings, emotions)
1
cold-blooded(person, feelings, emotions)
1
glacial(person, feelings, emotions)
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APASmart Define. (2016). straight-faced thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/straight-faced/thesaurus/synonyms
ChicagoSmart Define. 2016. "straight-faced thesaurus" https://smartdefine.org/straight-faced/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, straight-faced thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/straight-faced/thesaurus/synonyms>.
MLASmart Define. "straight-faced thesaurus" 23 March 2016. Web. 25 September 2026. <https://smartdefine.org/straight-faced/thesaurus/synonyms>