vapid

Lacking liveliness, animation, or interest; dull.

Lacking taste, zest, or flavor; flat.

That has lost its life and spirit; insipid; dead; flat.

Dull; spiritless; destitute of animation; insipid.

Having lost its life and spirit; dead; spiritless; insipid; flat; dull; unanimated.

Lifeless, dull or banal.

Tasteless, bland, or insipid.

lacking taste or flavor or tang

lacking significance or liveliness or spirit or zest