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