Familiarity1. (n.) The state of being familiar; intimate and frequent converse, or association; unconstrained intercourse; freedom from ceremony and constraint; intimacy; as, to live in remarkable familiarity.
2. (n.) Anything said or done by one person to another unceremoniously and without constraint; esp., in the pl., such actions and words as propriety and courtesy do not warrant; liberties.
Thesaurus Entries
Bohemianism, acquaintance, affability, affinity, amiability, assumption, awareness, boldness, casualness, chumminess, civility, closeness, clubbability, clubbishness, clubbism, cognition, cognizance, common touch, communicativeness, companionability, compatibility, comprehension, congeniality, cordiality, corpus, courtesy, data, datum, ease, easiness, easygoingness, experience, expertise, facts, factual base, fellowship, folksiness, fondness for society, friendliness, geniality, graciousness, grasp, gregariousness, homeliness, homeyness, hospitality, hubris, impertinence, imposition, impropriety, impudence, informality, informalness, information, inseparableness, insolence, intelligence, intimacy, intimate acquaintance, inwardness, irregularity, ken, know-how, knowing, knowledge, lawlessness, liberties, liberty abused, license, licentiousness, looseness, mateyness, naturalness, nearness, offhandedness, openness, palliness, plainness, practical knowledge, presumption, presumptuousness, private knowledge, privity, ratio cognoscendi, relaxedness, self-knowledge, simplicity, sociability, sociableness, social grace, sociality, special affinity, technic, technics, technique, unaffectedness, unceremoniousness, unconstrainedness, unconstraint, unconventionality, understanding, undue liberty, unpretentiousness, urbanity