(n.) Unacquaintance.

acerbity acescency acidity acidulousness adolescence agnosticism amateurishness amateurism blankmindedness brand-newness callowness coarseness crudeness crudity cullibility deceivability dewiness dryness dupability easiness empty-headedness freshness gloss of novelty greenhornism gullibility hiatus of learning hoaxability hyperacidity ignorance ignorantism ignorantness immatureness immaturity inanity inexperience infancy ingenuousness innocence intactness juiciness juniority juvenility know-nothingism knowledge-gap lack of information lateness maidenhood minority mint condition naiveness naivete naivety nescience newbornness newfangledness newfangleness newness nonage nondevelopment novelness novelty nowness obscurantism originality oversimplicity oversimplification persuadability presentness pristineness puberty pubescence pungency rawness recency recentness reductionism roughness rudeness sappiness seduceability simpleness simplicity simplism softness sour sourishness sourness spring springtide springtime strangeness subacidity tabula rasa tartishness tartness the rough unaccustomedness unacquaintance unacquaintedness uncommonness uncultivation undevelopment unexperiencedness unfamiliarity unfinish unfinishedness unfledgedness unintelligence unknowing unknowingness unpracticedness unprofessionalism unprofessionalness unrefinement unripeness unsophistication unsweetness unusualness vacuity vacuousness verjuice vinegariness vinegarishness virginity weakness youthfulness youthhood