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

Guardrails make the powerful model less useful for AI researchers, though the company said it would grant safeguard-free access to the science community.

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

Like there’s more love and good thoughts and powerful things inside of you than one body can hold.

From "Ida B" by Katherine Hannigan

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