  $\imath$quantum groups are generalizations of quantum groups which appear as
coideal subalgebras of quantum groups in the theory of quantum symmetric pairs.
In this paper, we define the notion of classical weight modules over an
$\imath$quantum group, and study their properties along the lines of the
representation theory of weight modules over a quantum group. In several cases,
we classify the finite-dimensional irreducible classical weight modules by a
highest weight theory.
