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useful

[yoos-fuh l] /ˈyus fəl/
adjective
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.
Origin
1585-1595
1585-95; use + -ful
Related forms
usefully, adverb
usefulness, noun
unuseful, adjective
unusefully, adverb
unusefulness, noun
Synonyms
1, 2. profitable, efficacious, beneficial.
Antonyms
1, 2. useless.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un-useful

useful

/ˈjuːsfʊl/
adjective
1.
able to be used advantageously, beneficially, or for several purposes; helpful or serviceable
2.
(informal) commendable or capable: a useful term's work
noun
3.
(Austral, informal) an odd-jobman or general factotum
Derived Forms
usefully, adverb
usefulness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for un-useful

useful

adj.

1590s, from use (n.) + -full. Related: Usefully; usefulness.

Online Etymology Dictionary, © 2010 Douglas Harper
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