n. The state of being reluctant; aversion; repugnance; unwillingness: often followed by to, sometimes by against.n. Synonyms Hatred, Dislike (see antipathy), backwardness, disinclination. See list under aversion.n. In electricity, the resistance to magnetic flux: the reciprocal of permeance. The unit of reluctance is the oersted, which is the reluctance of a magnetic circuit in which a unit of magnetomotive force will produce unit flux.