1. Wanting in the qualities which affect the organs of taste; without taste or savor; vapid; tasteless; as, insipid drink or food.
2. Wanting in spirit, life, or animation; uninteresting; weak; vapid; flat; dull; heavy; as, an insipid woman; an insipid composition. Flat, insipid, and ridiculous stuff to him. (South) But his wit is faint, and his salt, if i may dare to say so, almost insipid. (Dryden)
Synonym: tasteless, vapid, dull, spiritless, unanimated, lifeless, flat, stale, pointless, uninteresting.
Origin: L. Insipidus; pref. In- not _ sapidus savory, fr. Sapere to taste: cf. F. Insipide. See Savor.