Main entry: studious
Definition: marked by care and effort
Usage: made a studious attempt to fix the television set
Antonyms: careless
Definition: marked by lack of attention or consideration or forethought or thoroughness; not careful
Main entry: bookish, studious
Definition: characterized by diligent study and fondness for reading
Usage: a bookish farmer who always had a book in his pocket; a quiet studious child
Antonyms: unscholarly
Definition: not scholarly