Definition of unpowerful in English:

unpowerful

adjective

  • Not powerful.

Origin

Early 17th century; earliest use found in John Florio (1553–1625), author and teacher of languages. From un- + powerful, originally after Italian † impoderoso.

Pronunciation

unpowerful

/(ˌ)ʌnˈpaʊəf(ʊ)l/