INEFFICACIOUS - Definition & Meaning for Kids

Simple definitions and word synonyms for kids.

Meaning 1

Part of speech: Adjective

lacking the power to produce a desired effect

Example: laws that are inefficacious in stopping crime

Synonyms

Inefficacious

Antonyms

Efficacious

🔗 Related Words

in – A related word in the same word family.

efficacious – A related word in the same word family.

🧩 Fun Fact

Place names often preserve ancient languages long after the people who spoke them are gone.