is similar to
lacking bodily or muscular strength or vitality
"a feeble old woman"; "her body looked sapless"
is similar to
having a bone structure that is light with respect to the surrounding flesh
see also
exquisitely fine and subtle and pleasing; susceptible to injury
"a delicate violin passage"; "delicate china"; "a delicate flavor"; "the delicate wing of a butterfly"
see also
wanting in physical strength
"a weak pillar"