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Infra vs Ultra - What's the difference?

infra | ultra |

As nouns the difference between infra and ultra

is that infra is infrastructure while ultra is an ultraroyalist in France.

As an adverb infra

is used to refer to something discussed later.

As an adjective ultra is

extreme; far beyond the norm; fanatical; uncompromising.

infra

English

Etymology 1

Borrowed from (etyl) , below

Adverb

(-)
  • (legal) Used to refer to something discussed later.
    • Antonyms
    * supra
    Derived terms
    * infra dig

    Etymology 2

    Shortened form of infrastructure

    Noun

    (en noun)
  • (civil engineering, informal) Infrastructure.

    • Anagrams

    * ----

    ultra

    English

    Adjective

    (en adjective)
  • Extreme; far beyond the norm; fanatical; uncompromising.
    • an ultra''' reformer; '''ultra measures

    Noun

    (en noun)
  • An ultraroyalist in France.
  • * 1974 , (Lawrence Durrell), Monsieur , Faber & Faber 1992, p. 37:
  • *:"At any rate that is what he explained to me," I said hastily while the lawyer rubbed his long ultra' s nose and sighed.
  • An extremist.
  • * 2005', " Foreign '''ultra killed, three injured in J&K," ''The Times of India , 29 Dec. (retrieved 21 Apr. 2009):
    • Five militants were nabbed while four ultras of Harkat-ul-Jehad-e-Islami (HuJI) gave themselves up.
  • (usually, capitalised) Code name used by British codebreakers during World War 2 for decrypted information gained from the enemy.

    • Related terms

    * ulterior * ultimate * ultra- English refractory feminine rhymes ----