Elementary (A2)
IPA: /ˈɪn.stənt.li/
KK: /ˈɪnstəntli/
Definition
Without any delay; happening immediately.
Example
She responded to the email instantly.
Conversation

Did you see the new video game trailer?

Yeah, I watched it instantly when it came out!

I can't believe how amazing the graphics look.

Right? It makes me want to play it instantly!
Synonyms & Antonyms
Synonyms
immediately
promptly
quickly
Definition
At once; without any delay.
Example
She answered the question instantly.
Conversation

Did you hear that the café opens at 8 AM now?

Yeah, I heard! I can go there instantly after my morning run.

That sounds great! I can join you right after my class.
Root Explanation
Instantly → It is formed from "instant" (from Latin "instans", meaning standing or present) and the suffix "-ly" (meaning in a manner of). The word "instantly" means in a manner that is present or immediate.
Memory Tip
Think of something that is 'present' ('instans') happening 'in a manner' ('-ly') — that's why instantly means something occurs right away.
Visually Confused Words
distantly
inconstantly
constantly
natantly
intently
intactly
insanity
insanely