Meaning of ULTRA- in English

ULTRA-

transcription, транскрипция: [ ʌltrə- ]

Ultra- is added to adjectives to form other adjectives that emphasize that something or someone has a quality to an extreme degree.

...a wide range of ultra-modern equipment.

...an ultra-ambitious executive.

PREFIX [ emphasis ]

Collins COBUILD Advanced Learner's English Dictionary.      Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне.