Insipid

Part of speech: adjective (a.)

1. Wanting in the qualities which affect the organs of taste; without taste or savor; vapid; tasteless; as, insipid drink or food. Boyle.

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.

Synonyms: Tasteless; vapid; dull; spiritless; unanimated; lifeless; flat; stale; pointless; uninteresting.