Synonyms: casual, passing, perfunctory, cursory
Definition: hasty and without attention to detail; not thorough
Usage: a casual (or cursory) inspection failed to reveal the house's structural flaws; a passing glance; perfunctory courtesy
Similar words: careless
Definition: marked by lack of attention or consideration or forethought or thoroughness; not careful
Usage: careless about her clothes; forgotten by some careless person; a careless housekeeper; careless proofreading; it was a careless mistake; hurt by a careless remark