n. The state of being loose or relaxed; laxness of attachment, adjustment, connection, or coherence: as, the looseness of a cord or a vein; looseness of the skin, of earth, or of the texture of cloth; looseness of expression or of reasoning.n. Irregularity; instability; habitual deviation from rules; as applied to conduct, laxity; immorality; disorder.n. Flux from the bowels; diarrhea.