stolid
[adjective]
Synonyms: apathetic, dull, lumpish, unemotional, wooden

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Antonyms: sensitive
Related Words: blunt, dull, obtuse, dense, dumb, slow, stupid, inactive, inert, passive, supine

[TahlilGaran] English Synonym Dictionary ▲

stol‧id /ˈstɒləd, ˈstɒlɪd $ ˈstɑː-/ adjective
[Date: 1500-1600; Language: Latin; Origin: stolidus 'dull, stupid']
someone who is stolid does not react to situations or seem excited by them when most people would react – used to show disapproval Synonym : impassive
—stolidly adverb

[TahlilGaran] Dictionary of Contemporary English ▲