Antonyms of adj perfunctory

2 senses of perfunctory

Sense 1
casual, cursory, passing (prenominal), perfunctory -- (hasty and without attention to detail; not thorough; "a casual (or cursory) inspection failed to reveal the house's structural flaws"; "a passing glance"; "perfunctory courtesy")

INDIRECT (VIA careless) -> careful -- (exercising caution or showing care or attention; "they were careful when crossing the busy street"; "be careful to keep her shoes clean"; "did very careful research"; "careful art restorers"; "careful of the rights of others"; "careful about one's behavior")

Sense 2
pro forma, perfunctory -- (as a formality only; "a one-candidate pro forma election")

INDIRECT (VIA formal) -> informal -- (not formal; "conservative people unaccustomed to informal dress"; "an informal free-and-easy manner"; "an informal gathering of friends")

Similarity of adj perfunctory

2 senses of perfunctory

Sense 1
casual, cursory, passing (prenominal), perfunctory -- (hasty and without attention to detail; not thorough; "a casual (or cursory) inspection failed to reveal the house's structural flaws"; "a passing glance"; "perfunctory courtesy")
       => careless (vs. careful) -- (marked by lack of attention or consideration or forethought or thoroughness; not careful; "careless about her clothes"; "forgotten by some careless person"; "a careless housekeeper"; "careless proofreading"; "it was a careless mistake"; "hurt by a careless remark")

Sense 2
pro forma, perfunctory -- (as a formality only; "a one-candidate pro forma election")
       => formal (vs. informal) -- (being in accord with established forms and conventions and requirements (as e.g. of formal dress); "pay one's formal respects"; "formal dress"; "a formal ball"; "the requirement was only formal and often ignored"; "a formal education")