a. rare. [f. L. frustrāt- (see FRUSTRATE v.) -IVE. Cf. OF. frustratif.] Tending to frustrate, balk, or defeat; disappointing.
1730. in Bailey (folio).
1755. in Johnson.
1839. L. Blanchard, in New Monthly Mag., LVII. 418. The exposition … would have been utterly frustrative of its intention.
