Synonym: advantageous, beneficial, functional, handy, helpful, practical, serviceable, valuable. Similar words: be useful to, purposeful, purposefully, careful, doleful, forceful, hopeful, grateful. Meaning: ['juːsfʊl] 
adj. 1. being of use or service 2. having a useful function.
adj. 1. being of use or service 2. having a useful function. 
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(181) I wish you'd stop faffing about and do something useful!
(182) It is possible to add a few useful refinements to the basic system.
(183) The book gives some useful hints about how to plan your garden.
(184) It is no use simply to tell adolescents to shape up and do something useful.
(185) Some drugs kill off useful bacteria in the user's body.
(186) It would be a useful exercise for you to say the speech aloud several times.
(187) Brick rubble is useful as the base for paths and patios.
(188) Pain-killers are very useful in small amounts to bring your temperature down.
(189) The subject is practically useful and will stand you in good stead when looking for a job.
(190) Quite incidentally[sentencedict.com], I got some useful information at the party.
(191) It would serve no useful purpose to re-open the investigation.
(192) He dished up a lot of useful facts and figures.
(193) The book includes some useful facts about animal and plant life.
(194) It may be less useful than it appears at first.
(195) The biography is a useful corrective to the myths that have grown up around this man.
(196) Commodity prices can be a useful indicator of inflation, he claimed.
(197) Whether or not this is useful is a matter of opinion .
(198) there are some useful young ones coming into the team.
(199) These birds provide a useful function in controlling insect pests.
(200) It's useful to watch how other pilots handle the glider.
(201) A scholastic work is to have a useful bibliography at the end of each chapter or the whole book.
(202) His no-inflation bill serves as a useful counterweight to proposals less acceptable to the Committee.
(203) Television provides us with a useful window on the world.
(204) The revised edition of the book includes many useful annotations.
(205) Your paper provides a useful starting point for the discussion.
(206) I made a lot of useful business contacts at the conference.
(207) A light pointer is often useful with a slide projector.
(208) The figures are a useful guideline when buying a house.
(209) Here's a useful tip if you're caught without a mirror.
(210) The child-care centre is a useful facility for working parents.
More similar words: be useful to, purposeful, purposefully, careful, doleful, forceful, hopeful, grateful, ruefully, be full of, to the full, carefully, graceful, hopefully, resourceful, gracefulness, make full use of, lose face, refuse, defuse, refuge, beef up, refute, refund, defunct, refugee, befuddle, full, befuddled, make fun of.