Having a practical or beneficial use.

The quality or degree of being useful.

In a useful manner; in a way that achieves something

Obsolete form of useful.

(historical, derogatory, political jargon) Soviet sympathizer in Western countries, from the perspective of the political right.

plural of useful idiot

plural of usefulness

(simile) Totally useless.

(rare) comparative form of useful: more useful

superlative form of useful: most useful