In… flat
adverb
In a straightforward and rapid manner; without delay.
He fell flat in love with her.

Often appears as...
- fall in love flat
- goes in flat
Usage tips
Idiomatic
adverb
To an absolute degree; completely.
He rejected the proposal in flat

Often appears as...
- rejected in flat
- refused in flat
adjective
Apartment, an individual unit in a multi-unit building.
I live in a flat in London.

Often appears as...
- live in a flat
- rent a flat
adverb
In a straightforward and rapid manner; without delay.
He fell flat in love with her.

Often appears as...
- fall in love flat
- goes in flat
Usage tips
Idiomatic
adverb
To an absolute degree; completely.
He rejected the proposal in flat

Often appears as...
- rejected in flat
- refused in flat
adjective
Apartment, an individual unit in a multi-unit building.
I live in a flat in London.

Often appears as...
- live in a flat
- rent a flat
Definition 1 of 3

Rapid Action
Emphasizes the speed of an action or reaction, suggesting something happened quickly.

After hearing the news, she decided in flat to help.
Emotional Intensity
Shows a strong, sudden emotion like falling in love or getting angry.

He goes in flat when he sees a piece of artwork he loves.
Idiomatic Usage
Used in informal settings; may not be understood in formal or non-idiomatic contexts.

When she plays poker, she always goes in flat.
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