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.

It was largely successful but resulted in the rocket being grounded after the booster suffered an uncontrolled landing in the Gulf of Mexico.

From Los Angeles Times • Jun. 11, 2026

The industry had lost it—not one successful new entrant in four decades.

From The Wall Street Journal • Jun. 11, 2026

Eventually, a successful SpaceX IPO is a risk to many of those companies too.

From Barron's • Jun. 11, 2026

A spoof is only as successful as its dumbest joke, and these two films have plenty to choose from.

From Salon • Jun. 11, 2026

Oh, I just knew Marion’s trip to America would be successful.

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

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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