intestinal fortitude

1 strength of mind to carry on in spite of danger the one person who had the intestinal fortitude to stand up and denounce the injustice of it all Synonyms bottle [British slang], bravery, courageousness, daring, daringness, dauntlessness, doughtiness, fearlessness, gallantry, greatheartedness, guts, gutsiness, hardihood, heart, heroism, courage, intrepidity, intrepidness, moxie, nerve, pecker [chiefly British], prowess, stoutness, valor, virtueRelated Words backbone, fiber, fortitude, grit, gumption, mettle, pluck, pluckiness, spunk, temper; determination, perseverance, resolution; endurance, stamina, stomach, tenacity; audacity, boldness, brazenness, cheek, cojones [slang], effrontery, gall, temerityNear Antonyms cold feet, faintheartedness, fearfulness, mousiness, timidity, timorousness; feebleness, softness, weakness; impotence, ineffectualness; hesitation, indecision, indecisiveness, irresolutionAntonyms cowardice, cowardliness, cravenness, dastardliness, poltroonery, spinelessness

2 the strength of mind that enables a person to endure pain or hardship you'll need considerable intestinal fortitude to put up with that corporate diva, but the work experience will be worth it Synonyms backbone, constancy, fiber, grit, grittiness, guts, fortitude, pluck, spunkRelated Words determination, purposefulness, resoluteness, resolution; bravery, courage, courageousness, daring, dauntlessness, doughtiness, fearlessness, gallantry, greatheartedness, intrepidity, intrepidness, nerve, stoutness, valor; endurance, forbearance, stamina, sufferance, tolerance; heart, mettle, spirit; audacity, boldness, brass, cheek, chutzpah (also chutzpa or hutzpah or hutzpa), effrontery, gall, hardihood, nerve, nerviness, temerityNear Antonyms indecisiveness, irresoluteness, irresolution, vacillation; cowardice, cowardliness, cravenness, dastardliness, faintheartedness, pusillanimity, timidity, timorousnessAntonyms spinelessness