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Definition of successfulness
successfulness
/səkˈsɛs.fəl.nəs/
suc · cess · ful · ness
Adverb:successfully
•Adjective:successful
successfulness Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Rare
Syllables
4
successfulness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The state, quality, or degree of being successful; the attainment of a desired outcome, prosperity, or favorable result.
Example
"The long-term successfulness of the conservation program depended heavily on active participation from the local community."
Synonyms
View all synonyms for successfulness Antonyms
View all antonyms for successfulnessWord Nuance & Usage
In standard modern English, the simpler root noun 'success' is strongly preferred over 'successfulness', though the latter occasionally appears in technical or statistical contexts when referring to the measurable degree of success.
• Rhymes for successfulness
• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Successfulness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/successfulness