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