instantaneous

 
Pronunciation: /ˌɪnst(ə)nˈteɪnɪəs/

adjective

  • 1occurring or done instantly: modern methods of instantaneous communication her reaction was almost instantaneous
  • 2 Physics existing or measured at a particular instant: measurement of the instantaneous velocity

Derivatives

instantaneously

adverb

instantaneousness

noun

Origin:

mid 17th century: from medieval Latin instantaneus, from Latin instant- 'being at hand' (from the verb instare), on the pattern of ecclesiastical Latin momentaneus

Spelling help

Spell instantaneous with -eous at the end.