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