Definitions

successful

[suhk-ses-fuhl] / səkˈsɛs fəl /

ADJECTIVE

favorable, profitable

Synonyms

STRONGEST

fortunate fruitful happy lucky lucrative outstanding prosperous rewarding strong wealthy

WEAK

acknowledged advantageous ahead of the game at the top at top of ladder auspicious bestselling blooming blossoming booming champion crowned efficacious extraordinary flourishing fortuitous moneymaking notable noteworthy on track out in front paying rolling thriving top triumphant unbeaten undefeated victorious

Antonyms

STRONGEST

bad hopeless poor sad unfortunate unhappy unlucky unsuccessful

WEAK

forfeiting losing unfavorable unprofitable

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.

The British drugmaker so far has only said the drug was successful in a mid-stage trial.

From MarketWatch • Jun. 6, 2026

Research done by senior market strategist Mike Webster at Investor’s Business Daily shows the most successful IPO base breakouts share two key traits: a major single-day price surge and heavy trading volume.

From The Wall Street Journal • Jun. 6, 2026

Striker Haaland bagged 27 goals to win the league's golden boot, while Cherki enjoyed a successful first season in the Premier League.

From BBC • Jun. 5, 2026

For now, Apple seems to be following its successful old playbook.

From Barron's • Jun. 5, 2026

Mrs. Bennett was the most successful at it.

From "All About Sam" by Lois Lowry

Vocabulary lists containing successful

Power Suffix: -ful

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Talk Like Shakespeare Day, List 5

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"A Raisin in the Sun," "My Father is a Simple Man," and "My Mother Pieced Quilts"

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