unwhistleable

comparative more unwhistleable · superlative most unwhistleable

1. Not whistleable.

   I am supremely confident that when he and I are no longer around to argue the point, the unsingable and unwhistleable first movement of Beethoven's Ninth still will be.

   1967, Hi Fi/stereo Review, volume 19, page 14

   1 more example

   A dull movie that is also tasteless, with a drunk scene, a seduction scene, Reynolds shaking her behind while Crosby and a nun watch, plus several songs that are unhummable, unwhistleable, and unmemorable.

   1987, Jay Robert Nash, Stanley Ralph Ross, The Motion Picture Guide, volume 7, page 2753