Synonyms of the word

stamina

• n. The energy and strength for continuing to do something over a long period of time; power of sustained…
• n. (obsolete) The basic elements of a thing; rudimentary structures or qualities.
• n. (rare) plural of stamen.

endurance

• n. The measure of a person's stamina or persistence.
• n. Ability to endure hardship.

toughness

• n. (uncountable) The state of being tough.
• n. (physics, of a metal) Resistance to fracture when stressed.
• n. A formidable difficulty.