143 entries under adjective topic. ×

2
tenebrous(dull, rough, dark, gloomy)
2
uncertain(rough, loose, vague, unknown)
2
undetermined(weak, obscure, rough, dark)
2
unexplicit(unclear, indistinct, indistinguishable)
2
wavering
2
woolly
1
blah(dull, dark, gloomy, faint)
1
caliginous(dull, dark, gloomy, faint)
1
darkish(dull, dark, gloomy, faint)
1
dingy(dull, dark, gloomy, faint)
1
doubtful(weak, obscure, rough, dark)
1
dreary(dull, dark, gloomy, faint)
1
dubious(rough, vague, unknown, unclear)
1
dusk(dull, dark, gloomy, faint)
1
flat(dull, dark, gloomy, faint)
1
flickering
1
gray(dull, dark, gloomy, faint)
1
hushed(weak, pale, faded)
1
imperfect
1
invisible
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APASmart Define. (2015). ill-defined thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ill-defined/thesaurus/synonyms
ChicagoSmart Define. 2015. "ill-defined thesaurus" https://smartdefine.org/ill-defined/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, ill-defined thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ill-defined/thesaurus/synonyms>.
MLASmart Define. "ill-defined thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/ill-defined/thesaurus/synonyms>