useful

useful
adj.
P. and V. χρήσῐμος, χρηστός, σύμφορος, πρόσφορος, ἐπῐτήδειος, Ar. and P. ὠφέλῐμος, προὔργου, Ar. also V. ὠφελήσῐμος.

USEFUL

utilis (useful; ☞ conducibilis does not belong to good prose): salubris (as masculine Cic. Celsus; saluber Varr. and Ov.): salutaris (salutary; the latter also with ad aliquid): efficax (efficacious): commodus: accommodatus: aptus (convenient fit). To be useful utilem etc. esse; usui utilitati esse; ex usu esse; prodesse; conducere; for any purpose valere or vim habere ad aliquid (to have influence upon anything): prodesse or adjuvare ad aliquid (to be of use toward effecting an object; the latter also with ut).

useful:

1. ūtĭlis, e (gen. term): a man u. for nothing, homo ad nullam rem u., Cic. Off. 3, 6, 29: he mixed the u. with the pleasant, miscuit utile dulci, Hor. A. P. 343.

2. sălūtāris, sălūbris: v. WHOLESOME, BENEFICIAL. Join: utilis et s., Cic. N. D. 1, 15.

3. effĭcax: Hor.: Plin.: v. EFFICACIOUS.

4. commodus, aptus, accommŏdātus, ĭdōneus: v. FIT, SERVICEABLE, CONVENIENT, SUITABLE. Phr.: to be u., usui esse: to be u. to the state, usui esse civitati, Cic. Rep. 1, 20, 33: to be very u., magno usui esse, id. Att. 1, 1: no one is more u. to you, magis ex usu tuo nemo est, Ter. Eun. 5, 9, 47: proficere, Cic.: Liv.: v. [TO BE OF] USE: I will make you see how u. I can be, utilitatem ego faciam ut cognoscas meam, Ter. Eun. 2, 3, 17: to keep what is u. in war and honourable in peace, utilitatem belli et pacis dignitatem retinere, Cic. Manil. 6, 14. Very u. works, perutilia opera, Cic. Att. 9, 17, fin.