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

Wanting in spirit, life, or animation; uninteresting; weak; vapid; flat; dull; heavy; as, an insipid woman; an insipid composition.

lacking taste or flavor or tang; "a bland diet"; "insipid hospital food"; "flavorless supermarket tomatoes"; "vapid beer"; "vapid tea"

lacking significance or impact; "an insipid novel"

lacking interest or significance; "an insipid personality"; "jejune novel"

not pleasing to the sense of taste

lacking in flavour

lacking flavour and any recognizable taste. Such a wine is said to lack a soul or character.

flat, rather tasteless; not tart.

The dead, uninspiring flavor of coffee brewed from stale beans.

A taste taint giving the coffee brew a lifeless character, due to a loss of organic material in the coffee bean. Result of oxygen and moisture penetrating the bean fiber after roasting.

Lacking in character and acidity; dull.