weakly

Delicate in constitution; frail or sickly.

With little physical strength or force.

With little strength of character.

Weak; feeble; not robust: as, a weakly woman; a man of weakly constitution.

In a weak manner, in any sense of the word weak.

In a weak manner; with little strength or vigor; feebly.

Not strong of constitution; infirm; feeble

Frail, sickly or of a delicate constitution; weak.

With little strength or force

in a weak or feeble manner or to a minor degree