[f. as prec. + -ING2.] That practises or assumes attitudes of body, conduct or mind; posturing.
1853. Macready, in Four C. Eng. Lett., 511. The morbidly acute sensibility of Hamlet to be frozen up in a declaiming and attitudinising statue or automaton.
1879. Geo. Eliot, Theo. Such, v. 113. An attitudinizing deference.