susceptible to fatigue.
Origin of fatigable
1600–10; < Latin fatīgābilis, equivalent to fatīgā(re) to tire + -bilis -ble
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Subject to fatigue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.