The word “effectiveness” has 4 syllables: ef-fec-tive-ness
It's pronounced as /ɪˈfɛktɪvnɪs/
What is synonym and antonym for effectiveness?
In the thesaurus, “effectiveness” has 17 synonyms and 9 antonyms.
Here are synonyms and antonyms for effectiveness along with examples of usage in sentences.
On this page you'll find 26 synonyms, antonyms, or another words to effectiveness, such as: authority, capability, conclusiveness, convincingness, credibility, efficaciousness, efficacy.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.