noun. Having a medical condition in which fatigue is easily induced; easily susceptible to fatigue.

noun. susceptibility to fatigue; a tendency to get tired or lose strength

"In addition, 17 patients had excessive fatigability or exercise intolerance and several children had abnormal physical exam findings including six with facial dysmorphism, four with microcephaly, four with macrocephaly, and five with growth retardation."

weakness  

abstruseness  bearishness  bullishness  centralisation  commentsbefore