USEFUL

utilitarian, useful

(adjective) having a useful function; “utilitarian steel tables”

useful, utile

(adjective) being of use or service; “the girl felt motherly and useful”; “a useful job”; “a useful member of society”

Source: WordNet® 3.1

Etymology

Adjective

useful (comparative usefuller or more useful, superlative most useful)

Having a practical or beneficial use.

Synonyms: noteful, serviceable, utilitarian

Antonyms: unuseful, useless, harmful

Usage notes

• Prepositions: useful is used in useful for <purpose>, useful for <person> and useful to <person>. The words useful to are also found in constructions such as It is useful to do, in which to marks an infinitive rather than being a preposition.

Source: Wiktionary

Use"ful, a.

Definition: Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous; as, vessels and instruments useful in a family; books useful for improvement; useful knowledge; useful arts. To what can I useful! Milton.

Source: Webster’s Unabridged Dictionary 1913 Edition