radical — OET

radical

adjective

1 radical reform is long overdue:

thoroughgoing, thorough, complete, total, entire, absolute, utter, comprehensive, exhaustive, root-and-branch, sweeping, far-reaching, wide-ranging, extensive, profound, drastic, severe, serious, major, desperate, stringent, violent, forceful, rigorous, draconian.

▷antonyms superficial.

2 the apparently radical differences between logic and natural language:

fundamental, basic, essential, quintessential;

inherent, innate, structural, deep-seated, intrinsic, organic, constitutive, root.

▷antonyms minor.

3 a radical political movement:

revolutionary, progressive, reforming, reformist, progressivist, revisionist;

leftist, left-wing, socialist, anti-capitalist;

extremist, fanatical, militant, diehard;

informal woke, right-on;

informal , derogatory commie, Bolshevik, lefty, red, pink, bolshie.

▷antonyms conservative, reactionary; moderate.

noun

he was by no means a radical:

revolutionary, progressive, reformer, revisionist;

leftist, left-winger, socialist;

militant, zealot, extremist, fanatic, diehard;

informal , derogatory commie, Bolshevik, lefty, red, pinko.

▷antonyms conservative, reactionary; moderate.

radical Oxford Dictionary of English