From Longman Dictionary of Contemporary Englishstudiousstu‧di‧ous /ˈstjuːdiəs $ ˈstuː-/ adjective WORK HARDspending a lot of time studying and reading a quiet, studious young man —studiously adverb —studiousness noun [uncountable]
Examples from the Corpus
studious• Angus's round glasses made him look studious.• The gold-rimmed spectacles gave her a studious air.• In the circumstances I should have been the good daughter, studious and uninterested in boyfriends.• Warren's studious attention to detail has made him successful.• When I was in the tenth grade, a very quiet and studious boy invited me to a dance.• Salomon was a studious boy, with no friends, who kept himself to himself.• a quiet, studious girl• She was studious, read much, and liked to talk about the cosmos.• There was a more studious side to our visit, too.• Francis didn't bother with clothes or make-up. She was an extremely serious and studious young girl.Origin studious (1300-1400) Latin studiosus, from studium; → STUDY1 