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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.

Trump highlighted the successful rescue of two U.S. aviators whose plane was shot down by Iran.

From Barron's • Apr. 6, 2026

A short time later, Trump confirmed the successful mission on Truth Social, writing "WE GOT HIM!"

From BBC • Apr. 5, 2026

Replicating successful formulas can be the key to longevity in the entertainment business, but it also has a way of losing its charm, especially with critics.

From Salon • Apr. 5, 2026

Today, Kekoa is a successful high schooler, but too many kids don’t get their eyes checked until they’re far behind in school.

From Los Angeles Times • Apr. 4, 2026

Chapter Summary: This chapter looks at creative ideas for approaching and planning a successful music lesson, including a guided outline, models of full lessons, and classroom management tips.

From "Music and the Child" by Natalie Sarrazin

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.