sapless
1. [ adjective ] lacking physical strength or vigor
Synonyms: feeble infirm weak weakly decrepit
Related terms: frail impotent
2. [ adjective ] lacking physical strength or vitality
Synonyms: decrepit feeble infirm weak weakly debile
Examples:

"a feeble old woman" "her body looked sapless"

Related terms: frail
3. [ adjective ] destitute of sap and other vital juices; dry
Examples:

"the rats and roaches scurrying along the sapless planks"- Norman Mailer

Related terms: juiceless