successful

UK: /səkˈsɛsfʊl/ US: /səkˈsɛsfəl/ ,(sək ses′fəl)

WordReference Random House Learner's Dictionary of American English © 2025

suc•cess•ful /səkˈsɛsfəl/   adj. 

1. achieving or having achieved success:
   She had become a very successful businesswoman.
2. resulting in success:
   a successful attempt to quit smoking.

suc•cess•ful•ly, adv.: 

successfully answered the next question.

See -cess-.

WordReference Random House Unabridged Dictionary of American English © 2025

suc•cess•ful  (sək ses′fəl), adj. 

1. achieving or having achieved success.
2. having attained wealth, position, honors, or the like.
3. resulting in or attended with success.

• success + -ful 1580–90

suc•cess′ful•ly, adv. 
suc•cess′ful•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

successful / səkˈsɛsfʊl/ adjective

1. having succeeded in one's endeavours
2. marked by a favourable outcome
3. having obtained fame, wealth, etc

sucˈcessfully adverb

sucˈcessfulness noun