casualness Synonyms

familiarity lack of inhibition heedlessness unrestraint unconstraint unconcern tepidity spontaneity simplicity nonchalance negligence naturalness tepidness unpretentiousness lack of formality lack of ceremony eases unpreparedness unceremoniousness relaxedness offhandedness indeterminateness flukiness adventitiousness easygoingness insouciance informality coolness composure comfortableness coldness carelessness aplomb apathy aloofness affability accidentalness detachment disinterest disinterestedness indifference incuriousness incuriosity inattention freedom fortuity easiness ease disregard dispassion