ultra
adjective
1. (used of opinions and actions) far beyond the norm
- an ultra conservative
Similar word(s): immoderate, extremist, radical
Sentences with ultra as an adjective:
- an ultra reformer; ultra measures
noun
1. An ultraroyalist in France.
2. An extremist.
3. (usually capitalised) Code name used by British codebreakers during World War 2 for decrypted information gained from the enemy.