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on thin ice

on thin ice

20 6.2
In danger of getting into trouble for something you did
  • idiom
  • Informal
translation icon : estar en la cuerda floja
  • If you keep breaking the rules at work, you're on thin ice with your boss.
  • skate on thin ice
  • tread on thin ice
  • walk on thin ice

He was a little bit like he was always on thin ice with NASA, but.

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Examples

Synonyms

on the line
vson thin ice
230 4.8

At risk of being lost or harmed because of how something turns out

focuses on risk of trouble or negative consequences rather than physical harm
on a knife-edge
vson thin ice
1 7.8

A situation that could easily end well or badly

emphasizes being at risk of trouble or harm rather than balanced uncertainty
close to the wind
vson thin ice
8.6

Behaving in a way that is risky or near the limit of what is allowed

refers to being at risk of trouble or negative consequences not just risky conduct

Antonyms

1.0

Not likely to be harmed or in danger

117 3.6

Feeling confident and free from worry or doubt

How Risky

peril
112 5.7
dangerous
1.5
on thin ice
  • Informal
20 6.2
safe
1.0

Surface Forms

Morphology

on + thin + ice

The phrase evokes the literal image of standing on ice that might break, so the danger/consequence is directly inferable from 'on' + 'thin' + 'ice'. This spatial/metaphorical mapping is straightforward and cross-linguistically common, so a B1 learner who knows the constituent words will very likely grasp the figurative meaning.

Etymology

On thin ice may come from the image of someone walking on very thin ice that can break. If the ice breaks you fall into cold water, so the phrase now means being 'at risk' of trouble or punishment.