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show one's true colors

ʃoʊ wʌnz truː ˈkʌl.ərz

Colors
neutral
intermediate
Literally:
to display one's actual flags or banners

What does "show one's true colors" mean?

  1. to reveal one's real character or intentions
  2. to behave in a way that shows who you really are

Examples

  • He seemed nice at first, but he showed his true colors when things got difficult.
  • The crisis made the company show its true colors — they really cared about their employees.
  • People often show their true colors when they're under pressure.

Origin

From naval warfare, where ships would sometimes fly false flags to approach an enemy, then hoist their true colors before attacking.

How to use it

Can be used positively or negatively, though more often negative — revealing hidden bad qualities.

Similar expressions

reveal oneself
show one's hand
drop the mask

Opposites

put on a front
hide behind a mask
keep up appearances

Related idioms

  • black and white

    clearly defined with no ambiguity

  • silver lining

    a positive aspect of an otherwise bad situation

  • grey area

    a situation or topic that is unclear or not well-defined

  • give the green light

    to give permission or approval to proceed

  • black sheep

    a member of a group who is considered different or disreputable

  • golden opportunity

    an excellent or ideal chance that may not come again

Use it in a practice answer

Try "show one's true colors" in a CELPIP-style Speaking or Writing task. The AI feedback tells you whether your word choice worked.

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