[I] could see nothing in the evidence which did persuade me to think them other than poor, melancholy, envious, mischievous, ill-disposed, ill-dieted, atrabilious constitutions.
Source: wiktionary
Ranked by relevance and common usage.
Keep "atrabilious" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
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7 total sentences available.
[I] could see nothing in the evidence which did persuade me to think them other than poor, melancholy, envious, mischievous, ill-disposed, ill-dieted, atrabilious constitutions.
Source: wiktionary
In like manner, all the atrabilious diſeaſes require a regimen, nearly ſimilar, during the interval of the fits, to alter the atrabilious conſtitution which gives riſe to them all; but each requires a ſpecial method of cure, peculiarly adapted to the organ on which the fluxion falls after the fit is formed. Thus, e.g. the piles require a treatment different from a fit of the gout; and ſo of the others.
Source: wiktionary
But the torch of taste has for the moment fallen into the hands of little men, anæmic and atrabilious, with neither laughter nor pity in their hearts.
Source: wiktionary
Lame, lank, atrabilious Charles Grey Grey [sic] is a 32nd generation Northumberlander.
Source: wiktionary
Showing 4 of 7 available sentences.
Closest matches include bilious, blue, dyspeptic, funky, irritable.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.