fruitlessly Copy link Outline 1. frustrā, nēquicquam, incassum2. cassē (very rare)3. irrĭtus (in agreement with subject4. re infecta • fruitlessly: 1. frustrā, nēquicquam, incassum: v. vain (in). 2. cassē (very rare): f. to waste time, c. tempus terere, Liv. 24, 26, med. 3. irrĭtus (in agreement with subject: cf. L. G. § 343): he f. presses upon him with varied assaults, variis assultibus irritus urget, Virg. Aen. 5, 442: he returned as having f. undertaken the embassy, ille ut irritus legationis, rediit, Tac. H. 4, 32, extr. 4. re infecta: Liv. 9, 32: v. preced. art. fin.