1
pedestrian(adjective, dull, boring, routine, tedious)
1
pendulous(adjective, weak, soft, sloppy, fat)
1
plodding(adjective, dull, boring, routine, tedious)
1
pococurante(adjective, temper, cold, negative, behave)
1
poker face(expression, adjective, cool, flat, detached)
1
prosaic(adjective, dull, boring, tedious, dreary)
1
prosy(adjective, dull, boring, routine, tedious)
1
puts one to sleep(expression, adjective, idiom, dull, boring)
1
recurrent(adjective, dull, boring, tedious, dreary)
1
reiterated(adjective, dull, boring, tedious, dreary)
1
remote(adjective, cool, flat, detached, blank)
1
repetitious(adjective, dull, boring, routine, tedious)
1
repetitive(adjective, dull, boring, tedious, dreary)
1
reserved(adjective, cool, detached, blank, sober)
1
routine(adjective, dull, boring, tedious, dreary)
1
sagging(adjective, weak, soft, sloppy, fat)
1
sallow
1
samely(adjective, dull, boring, tedious, dreary)
1
sepulchral(adjective, dull, deep, muted, echoing)
1
shapeless(adjective, weak, soft, sloppy, fat)
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APASmart Define. (2015). toneless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/toneless/thesaurus/synonyms
ChicagoSmart Define. 2015. "toneless thesaurus" https://smartdefine.org/toneless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, toneless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/toneless/thesaurus/synonyms>.
MLASmart Define. "toneless thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/toneless/thesaurus/synonyms>