Meaning of USEFUL in English
— usefully , adv. — usefulness , n.
/yoohs"feuhl/ , adj.
1. being of use or service; serving some purpose; advantageous, helpful, or of good effect: a useful member of society.
2. of practical use, as for doing work; producing material results; supplying common needs: the useful arts; useful work.
[ 1585-95; USE + -FUL ]
Syn. 1, 2. profitable, efficacious, beneficial.
Ant. 1, 2. useless.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012