powerful

UK: ˈpaʊəf(ə)l | US: ˈpaʊərf(ə)l

Definition

  1. adj. having great power, strength, or influence

  2. adj. highly effective or impactful

  3. adj. (of a machine, system, etc.) capable of high performance

Structure
power <ability, strength>ful <full of, adjective suffix>
Etymology

The word "powerful" combines "power," derived from Old French poeir (from Latin potere, meaning "to be able"), with the suffix "-ful," from Old English -full (meaning "full of"). The fusion reflects a logical progression: "full of power" → "capable of exerting force or influence." The suffix "-ful" is a productive morpheme in English, often transforming nouns into adjectives (e.g., "joyful," "careful").

Examples

  1. The engine is powerful enough to tow a trailer.

  2. She delivered a powerful speech that moved the audience.

  3. This medicine is powerful against infections.

  4. The storm grew more powerful as it approached the coast.

  5. He has a powerful memory for details.