Synonyms of kidney

1 Syllable

stamp, guts, heart, spunk, starch, pluck, life, grit, fire

2 Syllables

mettle, spirit, moxie, force, valor, temper, daring, vigor, makeup, ardor, subclass, nerve

3 Syllables

resolve, dauntlessness, gameness, energy, backbone, courage, bravery, nature, stamina, hardihood, quality, gallantry, subclasses, caliber

4 Syllables

vitality, resolution, animation, disposition, temperament, fortitude

7 Syllables

indomitability