資料來源 : Webster's Revised Unabridged Dictionary (1913)

Frustrative \Frus"tra*tive\, a.
   Tending to defeat; fallacious. [Obs.] --Ainsworth.

資料來源 : WordNet®

frustrative
     adj : preventing realization or attainment of a desire [syn: {frustrating},
            {thwarting}]