showing one's true colors

Dropping the pretense

Showing one's true colors means revealing one's real character, especially after concealing it.

The phrase often implies the revealed nature is worse than expected: He seemed charming at first, but showed his true colors when things got difficult.

Less commonly, someone shows true colors by demonstrating unexpected virtue or courage.

The expression derives from naval ships flying false flags to deceive enemies before revealing their actual allegiance.

Related

revelation · self-awareness · betrayal · disclosure · vulnerability · duplicity · uncovering · deceit · courage · sincerity · integrity · facade · unveiling · true self · candor · openness · truthfulness · exposure

Opposites
authenticity vs. concealment

showing one's true colorsplaying a part

Assuming a role

putting on an act · dissembling · pretending · masquerading · playing a role

consistency vs. revelation

showing one's true colorsbiding one's time

Patiently awaiting opportunity

holding back · keeping a low profile

revelation vs. disguise

showing one's true colorskeeping secrets

pulling the wool over someone's eyes

Family

showed, showing, shower, showiness, oneness, trueness, truest, untrue, colors

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G