inefficacious - Similar and Opposite Words

What is another word for inefficacious ?

Here are the synonyms for inefficacious , a list of similar words for inefficacious from our thesaurus that you can use

Adjective

lacking the power to produce a desired effect

Synonyms

• inefficacious

Also See

• ineffective
• ineffectual
• uneffective

Opposite / Antonyms

• efficacious

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