stu ‧ di ‧ ous /ˈstjuːdiəs $ ˈstuː-/ BrE AmE adjective
[ Word Family: noun : ↑ student , ↑ study , ↑ studiousness ; adjective : ↑ studious , ↑ studied ; verb : ↑ study ; adverb : ↑ studiously ]
[ Date: 1300-1400 ; Language: Latin ; Origin: studiosus , from studium ; ⇨ ↑ study 1 ]
spending a lot of time studying and reading:
a quiet, studious young man
—studiously adverb
—studiousness noun [uncountable]