“+ adjective
Etymology: Middle English, from un- (I) + studied, past participle of studien to study
1. obsolete : not studied or contemplated : neglected
2. : lacking knowledge gained by study often in a specified field : unlearned
is unstudied in Latin as he is in many other matters
3. : not forced or unnecessarily elaborated by study or artifice: as
a. : unaffected , natural
the clusters of houses set beside these winding lanes have a simple unstudied charm — American Guide Series: Michigan
was possessed of a nervous temperament and his gestures were rapid and unstudied — Marie B. Owen
b. : casual , offhand , impromptu
an air of unstudied spontaneous utterance is apt to be as painstakingly achieved as any other quality in the poetic fiction — Susanne K. Langer