casualness Synonyms

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