1. (a.) Not used; as, an unused book; an unused apartment.

2. (a.) Not habituated; unaccustomed.

a stranger to abandoned as a bonus callow derelict dewy disaccustomed disused ever-new evergreen extra firsthand fledgling for lagniappe fresh given up green held back held in reserve held out idle ignorant immature in abeyance in hand inexperienced intact left leftover maiden maidenly mint neglected neoteric nestling net new new to odd original outstanding over over and above overplus pristine put aside put by raw remaining remanent reserve rusty saved sempervirent spare stored superfluous supernumerary surplus surviving suspended to spare unaccustomed unaccustomed to unacquainted with unapplied unbeaten unconsumed unconversant with undeveloped unemployed unexercised unexpended unfamiliar with unfledged unhabituated unhandled unhardened uninitiated in uninured unpracticed unseasoned unspent untapped untouched untrained untried untrodden unused to unutilized unwonted vernal virgin virginal waived weaned young