n. The state or character of being singular.n. Separateness from others; solitariness; specifically, celibacy.n. Individualism, as in conduct, opinion, characteristics, etc.n. Uniqueness; the state of having no duplicate, parallel, or peer.n. Unusualness; rareness; uncommon character; hence, specifically, rare excellence, value, eminence, or note.n. Variation from established or customary usage; eccentricity; oddity; strangeness.n. That which is singular; a singular person, thing, event, act, characteristic, mood, or the like; especially, an individual or personal peculiarity.n. In mathematics, an exceptional element or character of continuum.n. Synonyms Uncommonness, oddness.n. Idiosyncrasy. See eccentric.