Appearance idioms
Idioms - Vocabulary - B1/B2

Look the Part: 20 Appearance Idioms Brits Actually Use

By NativeUK - 29th March 2026
Idioms Appearance British English

First impressions matter, and the British have a wonderfully colourful (and sometimes brutally honest) way of describing how people look!

From looking flawlessly dressed to the nines to stumbling in like a drowned rat after a typical burst of British rain, appearance idioms are baked right into everyday conversation.

Here are 20 appearance idioms you'll actually hear native speakers using in the UK. Grab a cuppa, learn their meanings, see how they flow in a natural sentence, and steal a few to impress your mates.

20 Appearance Idioms

skin and bones

too thin

After his illness, he was nothing but skin and bones.

keep up appearances

pretending that things are going well

They struggled financially but tried to keep up appearances.

butter wouldn't melt in her mouth

looks innocent, like she wouldn't do anything bad

She looks so sweet, like butter wouldn't melt in her mouth.

drowned rat

was very wet

I got caught in the rain and looked like a drowned rat.

five o'clock shadow

the beginning of a beard

He had a bit of a five o'clock shadow by the evening.

seen a ghost

looked very scared or shocked

You look like you've seen a ghost!

thin on top

going bald

He's starting to get a bit thin on top.

dead ringer

looks extremely similar

That guy is a dead ringer for a famous actor.

two peas in a pod

extremely similar to each other

Those two brothers are like two peas in a pod.

look a million dollars

looked extremely glamorous

She looked a million dollars in that dress.

dressed to the nines

elegantly dressed and well presented

They were all dressed to the nines for the gala.

shabby

in a bad condition

He wore a shabby old coat.

past its sell-by date

likely to stop working soon; too old

This television is well past its sell-by date.

as dull as dishwater

extremely boring

The lecture was as dull as dishwater.

rough around the edges

not perfect; in need of more work

The draft of the book is still a bit rough around the edges.

as flat as a pancake

very flat

The landscape around here is as flat as a pancake.

as snug as a bug in a rug

very warm and comfortable

The baby looks as snug as a bug in a rug.

hair stand on end

was very shocked or frightened

The ghost story made my hair stand on end.

the pits

very difficult or unpleasant

The weather on our holiday was the pits.

leave a lot to be desired

was not as good as expected

The cleanliness of the room left a lot to be desired.

How to Play It Safe

As with all idioms about people, context is everything! Most of these expressions are highly playful, meaning they go down best when you're chatting with friends or people you know fairly well.

You can't go wrong handing out a massive compliment with look a million dollars or commenting that everyone is dressed to the nines at a wedding. But tread carefully with the negatives! Telling someone they look like a drowned rat or that they're thin on top is best kept as friendly banter—otherwise, you might end up in a bit of trouble!

Now you've got the vocabulary to sound natural, observant, and just the right amount of cheeky.

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