As verbs the difference between frail and enfeeble
is that
frail is to play a stringed instrument, usually a banjo, by picking with the back of a fingernail while
enfeeble is to make feeble.
As an adjective frail
is easily broken; mentally or physically fragile; not firm or durable; liable to fail and perish; easily destroyed; not tenacious of life; weak; infirm.
As a noun frail
is a basket made of rushes, used chiefly for containing figs and raisins.