Life is an unenjoyable Canaan, with nothing real or substantial in it.
Then began for Jacinth a quiet, regular, but far from unenjoyable life.
He thereby avoided the usual dryness of metaphysical studies, which makes them unenjoyable.
1640s, "capable of being enjoyed," from enjoy + -able. Meaning "affording pleasure" is from 1744. Related: Enjoyably; enjoyableness.