Here's what rhymes with unbewail.
whale wail bewail wale detail male fail mail sale pale sail tail tale jail nail rail veil gale hail shale bail vale bale dale pail quail hale quale derail kale faille scale trail avail prevail entail frail email stale assail inhale snail flail braille grail impale wassail travail curtail exhale gunwale mainsail pigtail topsail unveil martingale monorail taffrail bobtail nonpareil pellmell hightail carrell ponytail countervail foresail lugsail fingernail swallowtail hangnail tattletale