Definitions

1. adjective

exceeding or going beyond what is usual or normal

“The ultra-marathon runner completed the 100-mile course in under 24 hours.”

2. adverb

to a very great extent; extremely

“She is ultra-conservative in her views on politics.”

3. noun

a person or group that is very enthusiastic or extreme in their opinions or actions

“The ultra-left protesters blocked the streets and caused chaos.”

4. prefix

meaning beyond, exceeding, or extremely

“ultra-violet light”