Un-put-downable

Finally, we appeal to all right-minded playgoers. Let them remember that they have got tongues, and that a vigorous, unmistakeable, un-put-downable hiss is, in a theatre, a potent instrument.

Source: wiktionary

Since "Next" is one of Mr. [Michael] Crichton's more un-put-downable novels, the reader may experience some frustration. It's tempting to stop and look up each of the genetic, legal and ethical aberrations described here in order to see how wild a strain of science fiction is afoot. Save a step. Just believe this: Oddity after oddity in "Next" checks out, and many are replays of real events.

Source: wiktionary

[James] Lees-Milne does not always show himself off in a good light, and he is by turns self-aggrandising, cruel, dismissive, mean-spirited and totally un-put-downable (though there will be occasions when you want to throw his books across the room with some force).

Source: wiktionary