182 entries under dull topic. ×

1
irksome(adjective, simple, flat, plain)
1
long-winded(adjective, boring, tedious)
1
matte(adjective, weak, soft, obscure)
1
not alive(expression, cold, lifeless, nonliving)
1
nothing(adjective, simple, flat, plain)
1
nowhere(adjective, simple, plain, stupid)
1
obscure(adjective, soft, flat, dark)
1
pabulum(adjective, simple, flat, clean)
1
platitudinous(adjective, hard, simple, plain)
1
plebeian(adjective, simple, flat, plain)
1
prolonged(adjective, late, behind)
1
protracted(late, behind)
1
reduced(late, behind)
1
regular(adjective, quiet, flat, slow)
1
repetitive(adjective, flat, stupid, ordinary)
1
stolid(adjective, quiet, flat, slow)
1
threadbare(adjective, hard, flat, stupid)
1
timeworn(adjective, hard, old, sour)
1
unoriginal(adjective, hard, dry, bare)
1
unprogressive(late, behind)
10 years ago|42k views|share |citing 
APASmart Define. (2016). dead thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dead/thesaurus/synonyms
ChicagoSmart Define. 2016. "dead thesaurus" https://smartdefine.org/dead/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dead thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dead/thesaurus/synonyms>.
MLASmart Define. "dead thesaurus" 18 March 2016. Web. 25 September 2026. <https://smartdefine.org/dead/thesaurus/synonyms>