instantaneous
adjective
[ ˌɪnst(ə)nˈteɪnɪəs ]
• occurring or done instantly.
• "modern methods of instantaneous communication"
Similar:
immediate,
instant,
on-the-spot,
prompt,
direct,
swift,
speedy,
rapid,
quick,
expeditious,
express,
lightning,
sudden,
hurried,
hasty,
precipitate,
abrupt,
snappy,
p.d.q. (pretty damn quick),
fleet,
rathe,
alacritous,
• existing or measured at a particular instant.
• "measurement of the instantaneous velocity"
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 .
