Synonyms & Antonyms of perfunctory. having or showing a lack of interest or concern. the violinist delivered a perfunctory performance that displayed none of the passion and warmth he was once known for. Synonyms for perfunctory. apathetic, casual, complacent, disinterested, incurious,

Dictionary of English Synonymes (5.00 / 2 votes) Rate these synonyms: perfunctory (a.) Synonyms: indifferent, careless, slovenly, heedless, reckless, negligent, slight; done, but not well done; done to be rid of ( without a due sense of obligation)