instantaneously
adverb C2- Without any delay; in an instantaneous manner.
From the library
At the same instant his ear caught a sort of indistinct sound on the stairs, followed by the measured tread of soldiery, with the clanking of swords and military accoutrements; then came a hum and buzz as of many voices, so as to deaden even the noisy mirth of the bridal party, among whom a vague feeling of curiosity and apprehension quelled every disposition to talk, and almost instantaneously the most deathlike stillness prevailed.
For you must indeed be a great chemist, and the elixir you administered to my son, which recalled him to life almost instantaneously——”
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