Here's what rhymes with unfloatable.
notable potable quotable Words that almost rhyme with unfloatable
erodible approachable unapproachable inapproachable reproachable irreproachable knowable sociable unsociable negotiable controllable unknowable notional revokable consolable emotional disposable unemotional devotional promotional uncontrollable inconsolable nonnegotiable renegotiable overemotional