radical

noun adjective

Stress: first syllable

Syllables: rad-i-cal (3)
English Definition

Relating to or affecting the fundamental nature of something; far-reaching or thorough

Example Sentence

We need a radical change in our education system.

US IPA /ˈrædɪkl/
UK IPA /ˈrædɪkl/

Synonyms

fundamental extreme drastic thorough revolutionary

Antonyms

conservative moderate superficial