1noun
power to be effective; the quality of being able to bring about an effect
01 Word definition
effectiveness
13 letters · 5 vowels · 8 consonants
Is EFFECTIVENESS a word?
Yes. EFFECTIVENESS is a 13-letter noun. power to be effective; the quality of being able to bring about an effect Check the official dictionary for your particular word game before playing it.
Correct spelling
E-F-F-E-C-T-I-V-E-N-E-S-SHow do you spell EFFECTIVENESS?
EFFECTIVENESS contains 13 letters, begins with E, and ends with S.
Check another spelling →Meaning and definition
2noun
capacity to produce strong physiological or chemical effects
“the toxin's potency”
Synonyms
Source: Open English WordNet 2025 (CC BY 4.0) ↗effectivityeffectualnesseffectualitypotencystrength
02 Letter breakdown
How is EFFECTIVENESS spelled?
E1F2F3E4C5T6I7V8E9N10E11S12S13
03 Word-game status
Can you play EFFECTIVENESS?
UnscramblerHQ dictionary
This spelling is present in our broad English solver dictionary.
Scrabble
Base tile value: 24 points. Confirm eligibility in the official word list used for your region and edition.
Words With Friends
Base tile value: 27 points. Confirm eligibility inside the current game dictionary.
FAQ Quick answers
About EFFECTIVENESS.
How do you spell EFFECTIVENESS?
EFFECTIVENESS is spelled E-F-F-E-C-T-I-V-E-N-E-S-S. It contains 13 letters.