Disapproval, n.
Disapprobation; dislike; censure; adverse judgment.
Shades of meaning
Fernald has no entry of its own for disapproval; he lists it under reproof.
Where he writes about it:
Blame, censure, and disapproval may either be felt or uttered; comment, criticism, rebuke, reflection, reprehension, and reproof are always expressed. — from reproof
Rebuke, literally a stopping of the mouth, is administered to a forward or hasty person; reproof is administered to one intentionally or deliberately wrong; both words imply authority in the reprover, and direct expression of disapproval to the face of the person rebuked or reproved. — from reproof