(a.) Not having experience unskilled.

a novice at a stranger to artless awkward befoolable blankminded born yesterday budding callow dewy disaccustomed dumb empty empty-headed foolable fresh gauche green green as grass groping growing gullible ignorant immature impubic inane indefensible inept inexpert inexpiable ingenuous innocent intact juicy know-nothing minor naive nescient new to new-fledged prentice raw ripening rude rusty sappy simple strange to tender tentative unaccustomed unaccustomed to unacquainted unacquainted with unadult unapprized uncomprehending unconversant unconversant with underage undeveloped unenlightened unexperienced unfamiliar unfamiliar with unfledged unforgivable unformed unhabituated unhardened unilluminated uninformed uninitiated uninitiated in unintelligent uninured unjustifiable unknowing unlicked unmatured unmellowed unpardonable unposted unpracticed unpracticed in unripe unschooled unseasoned unskilled unskilled in unsophisticated unsure untenable untrained untried unused unused to unversed unversed in unwonted unworldly vacuous vernal virginal weaned young