flaccid

Flabby; lacking firmness or muscle tone.

Colonel Korn, a stocky, dark, flaccid man with a shapeless paunch, sat completely relaxed on one of the benches in the front row, his hands clasped comfortably over the top of his bald and swarthy head.

Soft; floppy.

The combatants with rage most horrible Strove, and their eyes started with cracking stare, And impotent their tongues they lolled into the air, Flaccid and foamy, like a mad dog’s hanging; […]

Soft; floppy.

They first measured along the top surface of the flaccid penis, [...]

Lacking energy or vigor.

The flaccid economy of the 1970s rendered Americans even more hostile toward liberal welfare policies.