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Related to ultra: ultraviolet


Immoderately adhering to a belief, fashion, or course of action; extreme.
An extremist.

[French, from Latin ultrā-, ultra-.]


extreme or immoderate, esp in beliefs or opinions
(Government, Politics & Diplomacy) an extremist
[C19: from Latin: beyond, from ulter distant]


(ˈʌl trə)

adj., n., pl. -tras. adj.
1. going beyond what is usual or ordinary; excessive; extreme.
2. an extremist, as in politics, religion, or fashion.
[1815–25; independent use of ultra-]


a prefix occurring orig. in loanwords from Latin, with the basic meaning “on the far side of, beyond.” In relation to the base to which it is prefixed, ultra- has the senses “located beyond, on the far side of” (ultramontane; ultraviolet), “carrying to the furthest degree possible, on the fringe of” (ultraleft; ultramodern), “extremely” (ultralight); nouns to which it is added denote objects, properties, etc., that surpass customary norms, or instruments designed to produce or deal with such things (ultramicroscope; ultrasound; ultrastructure).
[< Latin ultrā (adv. and preposition) on the far side (of), beyond]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.ultra - (used of opinions and actions) far beyond the normultra - (used of opinions and actions) far beyond the norm; "extremist political views"; "radical opinions on education"; "an ultra conservative"
immoderate - beyond reasonable limits; "immoderate laughter"; "immoderate spending"


Holding especially political views that deviate drastically and fundamentally from conventional or traditional beliefs:
Slang: far-out.
One who holds extreme views or advocates extreme measures:
References in classic literature ?
The surprise to me is, that you forgot to purchase this ne plus ultra of elegance while in Paris last summer.
chariot = a light, four-wheeled carriage with only back seats; ne plus ultra = peak, ultimate}
He is such an ultra Radical, you know, and the Dorsets are fierce Tories.
We boldly state, now that we are goaded to the disclosure, and we throw ourselves on the country and its constables for protection--we boldly state that secret preparations are at this moment in progress for a Buff ball; which is to be held in a Buff town, in the very heart and centre of a Buff population; which is to be conducted by a Buff master of the ceremonies; which is to be attended by four ultra Buff members of Parliament, and the admission to which, is to be by Buff tickets
Foremost among them was a highly-dressed young mulatto man, evidently a very distingue personage, attired in the ultra extreme of the mode, and gracefully waving a scented cambric handkerchief in his hand.
But I think our ULTRAS are acting more from jealousy than from party spite.
The vengeance Mademoiselle Roguin and her companions were inflicting on Mademoiselle Thirion and her group had, therefore, the fatal effect of driving the young ULTRAS to search for the cause of the silence so obstinately maintained by Ginevra di Piombo.
Such bijou ne plus ultras, replete with all the amenities, do not, as I pointed out to Penfentenyou, transpire outside of England.
Many current systems employ Ultra 320 parallel SCSI for boot drives, local data storage, or external arrays of modest size.
After helping to start several wheel foundries, Smith began Ultra Wheel Co.
We'll explore the technical differences between Ultra ATA and Serial ATA technology, and to provide explanation for the transition from a parallel to serial bus architecture.