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Synonyms

heroism

American  
[her-oh-iz-uhm] / ˈhɛr oʊˌɪz əm /

noun

  1. the qualities or attributes of a hero or heroine.

    He showed great heroism in battle.

    Synonyms:
    fortitude, daring, courage, bravery, gallantry, prowess, valor, intrepidity
    Antonyms:
    timidity, cowardice
  2. heroic conduct; courageous action.

    Pat's returning into the burning building was true heroism.


heroism British  
/ ˈhɛrəʊˌɪzəm /

noun

  1. the state or quality of being a hero

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heroism

1660–70; hero + -ism; compare French héroïsme

Explanation

When you think of heroism, you might think of great acts of bravery, such as rushing into burning buildings and facing danger in battle. Heroism consists of putting others first, even at your own peril. The noun heroism comes from the Greek hērōs, which referred to a demigod. As someone who shows great courage and valor is referred to as a hero, their actions are considered to be acts of heroism. 19th Century lawyer Robert Green Ingersoll said it well: “When the will defies fear, when duty throws the gauntlet down to fate, when honor scorns to compromise with death — that is heroism.”

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The latter received a Congressional Medal of Honor and the former a Legion of Merit award for Extraordinary Heroism.

From BBC • Feb. 25, 2026

In the latest Gabfest Reads, David talks with author Adam Higginbotham about his new book, Challenger: A True Story of Heroism and Disaster on the Edge of Space.

From Slate • Mar. 20, 2025

On Tuesday, the guardsmen were honored with Alaska Heroism Medals, giving the Alaska Native men the recognition that wasn’t available 67 years ago.

From Seattle Times • Apr. 1, 2023

In 2016, while on a fishing trip with his family in Alaska, Powell read Adam Makos’ Korean War biography, “Devotion: An Epic Story of Heroism, Friendship, and Sacrifice.”

From Los Angeles Times • Nov. 22, 2022

I wonder whether you ever shewn her these Letters, especially the Last, with my Heroism, which you might do, should she inquire for my Safety.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume I: The Pox Party" by M.T. Anderson