英和和英

He has a weak constitution―a frail constitution―（女なら）―She has a delicate frame―She is delicate in health.

change in state of functioning of living thing: become abnormal (become weak)

enjoy poor health

being in poor health

the state or condition of health being poor

a feeble body

to decline in health―break in health

of one's constitution, being weak

the state of being limp

a weakened structure

of a body, the state of being weak due to old age

being sickening

a time when one is not healthy

a weak or disabled child

(on one's constitution) to become weak

the degree of poor health

vulnerable parts of the body

of a body, to be tired and weak

feeling languid

the quality of being wispy

to be enfeebled―be weakened―waste away―run down

It is bad for the health―injurious to health.

He has a strong constitution―an iron constitution―a powerful physique.

invalid

the state of having no physical strength

of health, to become very feeble

having a strong body

Your body is stiff.

of a person, to become itchy

a hard constitution