1
piqued(melancholy, miserable, unstable, changeable, temperamental)
1
rancorous(adjective, resentful)
1
relentless(adjective, strong, hard, tough, severe)
1
resentful
1
rigid(adjective, strong, hard, tough, severe)
1
rigorous(adjective, strong, hard, tough, severe)
1
scowl
1
sedate
1
shaggy
1
short-tempered(unstable, changeable, temperamental)
1
singing the blues(expression, idiom, low, gloomy, depressed)
1
snappish(low, gloomy, melancholy, miserable, depressed)
1
sober
1
sober-minded
1
sobersided
1
splenetic(low, gloomy, miserable, unstable, depressed)
1
staid
1
steely(adjective, strong, hard, tough, severe)
1
stiff-necked(adjective, strong, hard, tough, severe)
1
stone-faced
11 years ago|6.4k views|share |citing 
APASmart Define. (2015). frowning thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/frowning/thesaurus/synonyms
ChicagoSmart Define. 2015. "frowning thesaurus" https://smartdefine.org/frowning/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, frowning thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/frowning/thesaurus/synonyms>.
MLASmart Define. "frowning thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/frowning/thesaurus/synonyms>