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Mettle

n. resilient, capable warm

What it means

Courage, resolve, and strength of character revealed by difficulty.

Reach for it when praising how someone meets a real test rather than predicting untested toughness

The final steep ascent tested the young hikers' mettle.

Words to choose between 9

By register, from playful at the top to literary at the bottom. Tap a word to see when it fits.
everyday
warm
professional
formal
literary

  • everyday

    backbone

    Fits when moral firmness resists social pressure

    Careful Backbone can shame people by implying weakness and sounds blunt.

  • everyday

    grit

    Fits when sustained effort through difficulty deserves concise praise

    Careful Grit can romanticize needless hardship and ignore support or strategy.

  • warm

    courage

    Fits when action proceeds despite fear

    Careful Courage can appear in one moment, while mettle often emerges across a test.

  • warm

    inner strength

    Fits when personal resilience should be expressed gently

    Careful Inner strength is nonspecific and can imply hardship belongs to the individual alone.

  • warm

    spirit

    Fits when morale and lively inner strength are central

    Careful Spirit can name mood or liveliness before character has been tested.

  • professional

    resolve

    Fits when firm decision keeps effort directed

    Careful Resolve can be stubborn or misguided and does not prove character.

  • professional

    tenacity

    Fits when persistent grip on a difficult goal matters

    Careful Tenacity can continue after evidence says the goal should change.

  • formal

    fortitude

    Fits when enduring prolonged hardship with strength matters

    Careful Fortitude emphasizes endurance more than initiative or competitive spirit.

  • literary

    stoutheartedness

    Fits when brave resolve suits an intentionally old-fashioned tone

    Careful The rare word is too ornate for direct modern praise.

Opposites 3

  • cowardice
  • weakness
  • timidity

Common phrases 3

  • test one's mettle

    Leading the rescue would test her mettle and her judgment.

  • prove his mettle

    He proved his mettle by correcting the failure before defending his decision.

  • show real mettle

    The apprentice showed real mettle during the difficult second attempt.

Definitions and examples are written for this site. How words are chosen Recording: Vealhurl, Southern England accent, from Wikimedia Commons, CC BY-SA 4.0 Updated