English Reference
adjective · adverb

powerful

adj. · adv.
US /ˈpaʊɝfəɫ/ UK /pˈaʊəfəl/ pow·er·ful

  1. 01 B1 Intermediate

    adj.having great strength, control, or the ability to influence people and events.

    adj.possessing or capable of exerting significant physical, political, or social power.

    Simple

    The president gave a powerful speech that changed many people's minds.

    In context

    The CEO is one of the most powerful figures in the tech industry, capable of shifting global markets with a single announcement.

  2. 02 B2 Upper Intermediate

    adj.having a very strong effect on your mind or your senses.

    adj.producing a sharp, intense, or highly effective impact on the senses or intellect.

    Simple

    The medicine had a powerful effect and he felt better within minutes.

    In context

    The novel's powerful imagery stayed with me long after I had finished the final chapter.

  3. 03 C2 Proficiency Technical Math

    adj.a special type of number in math that can be divided by certain square numbers.

    adj.referring to a natural number m such that if a prime number p divides m, then p squared also divides m.

    Simple

    In our math class, we learned how to identify a powerful number.

    In context

    The mathematician demonstrated that while all perfect powers are powerful numbers, the converse is not necessarily true.

  4. 04 C2 Proficiency DialectInformal

    adv.used to mean 'very' or 'extremely' in some local styles of speaking.

    adv.used as an intensifier equivalent to 'very'; restricted to specific regional dialects.

    Simple

    That was a powerful long walk we took this morning.

    In context

    He was powerful hungry by the time they reached the camp, having skipped both breakfast and lunch.

    Usage

    Usually placed before an adjective to add emphasis.

Usage powerful earthquake · powerful cosmic · powerful enough


From Middle English pouerful, powarfull. By surface analysis, power + -ful.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English pouerful
Level B1 · Intermediate
Frequency Very common
Updated