Definitions

powerful

[pou-er-fuhl] / ˈpaʊ ər fəl /

ADJECTIVE

strong, effective

Synonyms

STRONGEST

all-powerful authoritative capable compelling dominant dynamic energetic forceful impressive influential mighty persuasive potent robust vigorous

WEAK

able almighty authoritarian big-wheel cogent commanding competent controlling convincing effectual efficacious forcible in control in the saddle omnipotent overruling paramount preeminent prevailing puissant ruling sovereign stalwart strapping strengthy sturdy supreme telling upper hand weighty wicked wieldy

Antonyms

STRONGEST

idle impotent inactive incapable ineffective ineffectual insignificant lethargic unimportant weak

WEAK

unable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Looking at the daily chart of the VanEck Semiconductor ETF, a bearish evening star was completed on June 4 following a powerful 79% advance since the start of the second quarter.

From Barron's • Jun. 11, 2026

Productivity related to AI is likely emerging this year, it adds, and seen to become a powerful tailwind later in the productivity cycle.

From The Wall Street Journal • Jun. 11, 2026

Playing 1,375 days after her last competitive match, Williams - one of the greatest players of all time - didn't look a touch out of place as she rediscovered her powerful serve and groundstrokes.

From BBC • Jun. 11, 2026

Flight argues that, no matter how powerful the technology of frontier models, “cost curves, capacity constraints and marginal returns” are what will determine the pace and scale of adoption.

From MarketWatch • Jun. 11, 2026

Spiritualist friends wanted the powerful Maggie Fox to return to the séance table; and off and on, she did.

From "American Spirits" by Barb Rosenstock

Vocabulary lists containing powerful

In the Mood? 100 Words to Describe Emotions

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Hooked on a Feeling, List 1

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Words to Describe a Movie

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!