unaccustomed

Not common or usual.

Not being habituated. Used with to:

Not accustomed; not used; not made familiar or habituated.

Not according to custom; not familiar; unusual; extraordinary; strange.

Not used; not habituated; unfamiliar; unused; — with to.

Not usual; uncommon; strange; new.

Not prepared by life experience to an event or thing, not accustomed

not habituated to; unfamiliar with

not customary or usual