Answer:

infirm

AnswerCrossword Clue
INFIRMNot feeling well
INFIRMFeeble
INFIRMAiling
INFIRMSickly
INFIRMWeak
INFIRMWeak and feeble
INFIRMLacking strength
INFIRMVacillating
INFIRMLacking bodily or muscular strength