On the fly

usgb
adverb

Doing something quickly as the situation changes, without planning.

I didn't have time to create a full report, so I just did it on the fly.
Visual representation of "on the fly" - Doing something quickly as the situation changes, without planning

Often appears as...

  • do something on the fly
  • make decisions on the fly

Usage tips

Idiomatic

Definition 1 of 3
Visual representation of "on the fly"
LampPro Tip 1/3

Spontaneity Connotation

Conveys a sense of improvisation and quick thinking in an unplanned situation.

Illustration for Spontaneity Connotation
She crafted her speech on the fly and wowed the audience.
LampPro Tip 2/3

Time Pressure

Implies that there was not much time for preparation and the action was done hastily.

Illustration for Time Pressure
The chef prepared the dish on the fly during the sudden rush hour.
LampPro Tip 3/3

Casual Use

More commonly used in casual or informal conversations, not in formal writing.

Illustration for Casual Use
I'll have to call you back, I'm figuring things out on the fly here.
Visual representation of the word "On the fly"

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