In*cest"u*ous (?; 135), a. [L. incestuosus: cf. F. incestueux.]
Guilty of incest; involving, or pertaining to, the crime of incest; as, an incestuous person or connection.
Shak.
Ere you reach to this incestuous love,
You must divine and human rights remove.
Dryden.
-- In*cest"tu*ous*ly, adv. -- In*cest"tu*ous*ness, n.
© Webster 1913.