useful
adjective
being of use or service; serving some purpose; advantageous, helpful, or of good effect.
usefulness
-
a word derived from
useful.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Could the enormous AI infrastructure build-out be changing demand for metals used in electronics and technology, and perhaps undermining the usefulness of this old market signal?
From MarketWatch ● Oct. 28, 2026
I recognize their dramatic usefulness — cat-and-mouse, stop-them-before-they-kill-again, detective-meets-match — but as a class I find them tedious.
From Los Angeles Times ● Oct. 28, 2026
These restrictions limited the potential usefulness of optical memory, particularly because thicker magnetic structures can help preserve stored information over extended periods.
From Science Daily ● Oct. 27, 2026
But agents’ usefulness is limited if users won’t let them log in to email accounts and e-commerce sites so they can manage their lives and buy stuff.
From The Wall Street Journal ● Oct. 23, 2026
He published prolifically; his areas of interest, which included the propagation of electron beams and their usefulness as ionization agents, were among the most intriguing in physics; and his resourceful laboratory technique was widely praised.
From "Big Science" by Michael Hiltzik
