warning

Idioms (7)

• bad news Informal · CEFR A2
  an unpleasant piece of information; (informal) a person or thing likely to cause trouble
• the last straw Neutral · CEFR B2
  The final small problem that makes a situation no longer tolerable.
• the tip of the iceberg Neutral · CEFR B2
  a small visible part of a much larger hidden problem or situation
• the calm before the storm Neutral · CEFR B2
  a quiet period immediately before trouble, intense activity, or chaos
• the writing on the wall Neutral · CEFR B1
  clear and unmistakable signs that failure or disaster is coming
• red flag Neutral · CEFR B1
  a warning sign that something is wrong
• wake-up call Neutral · CEFR B1
  an event that forces you to realize a problem you were ignoring