useful

If you can use something, it's useful. Useful things are handy for whatever you're doing.

If something is just what you need or you just find it helpful, then it's useful. A hammer is useful in building many things. Coasters are useful if you don't want a coffee table to get stains. College degrees are useful — or necessary — for many careers. MacGyver would tell you that just about anything can be useful at some point: it all depends what you need to do.

Definitions of useful
1

adj having a useful function

Synonyms:
utilitarian
functional
designed for or capable of a particular function or use

adj being of use or service

“the girl felt motherly and useful
“a useful job”
“a useful member of society”
Synonyms:
utile
effective, effectual, efficacious
producing or capable of producing an intended result or having a striking effect
expedient
serving to promote your interest
helpful
providing assistance or serving a useful function
profitable
yielding material gain or profit
serviceable
ready for service or able to give long service
multipurpose
having multiple uses
reclaimable, recyclable, reusable
capable of being used again
serviceable
capable of being put to good use
usable, useable
capable of being put to use
utilitarian
having utility often to the exclusion of values
utilizable
capable of being put to a profitable or practical use
Antonyms:
useless
having no beneficial use or incapable of functioning usefully
ineffective, ineffectual, uneffective
not producing an intended effect
unprofitable
producing little or no profit or gain
unserviceable
not ready for service
futile, ineffectual, otiose, unavailing
producing no result or effect
inutile
not worth using
unserviceable, unusable, unuseable
not capable of being used
show more antonyms...

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.