If something happens instantly it happens immediately. If something happens instantaneously it also happens immediately but at the same time very quickly. Instantaneous and instantaneously are used only in a restricted range of contexts (see below):
The Beatles songs are instantly recognisable - everybody seems to know them.
When I saw Barbara crying I knew instantly what was wrong.
Death was instantaneous for all the people in the car when the bomb exploded.
The airbags for the driver and front seat passenger inflate instantaneously on impact in a head-on collision.
So ' instantaneously' means happening more quickly as compared to 'instantly'?Does that mean "instantaneously" will prevail over "instantly"?
Top answer
Nakool So ' instantaneously' means happening more quickly as compared to 'instantly'? I'd say so, generally. Nakool Does that mean "instantaneously" will prevail over "instantly"?
— Mister Micawber
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