useful Meaning, Definition & Usage

  1. adjective being of use or service
    utile.
    • the girl felt motherly and useful
    • a useful job
    • a useful member of society
  2. adjective satellite having a useful function
    utilitarian.
    • utilitarian steel tables

WordNet

Use"ful adjective
Definitions
  1. 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.

Webster 1913