1 weak

2 feeble

3 young

4 inferior

5 (following a decimal or fraction) slightly less than

1 weak

2 frail

1 vulnerable

2 weak

1 small and weak

2 puny

3 the small and weak

4 children

5 women and children

1 weak-minded

2 mentally deficient

3 retarded

1 using the weak to defeat the strong (idiom); to win from a position of weakness

1 to use one's strength to bully the weak (idiom)

1 the country weakened and the people empoverished (idiom)

1 old and weak (idiom)

1 too weak to stand up to the wind (idiom); extremely delicate

2 fragile state of health