Radical
7 lettersadjectivecommonUpdated February 2026
Definition
Relating to or affecting the fundamental nature of something; far-reaching or thorough. It can also mean advocating complete political or social reform, or in mathematics, relating to the root of a number.
“The company underwent radical restructuring to improve operational efficiency.”
Related Words
Synonyms
Word Game Tips
🟩
Wordle
Contains double A and I; watch for -AL ending
🔤
Scrabble
Worth 10 points; good for building with existing words
Explore Similar Words
Try These Tools
Dictionary References
Look up radical in an authoritative dictionary for full definitions, pronunciation, and etymology.
Ready to test your word skills?
Download Word Challenge and challenge yourself with our daily word puzzles. Guess the hidden word in six tries or fewer!