Weakest

The strength of the chain is in the weakest link.

The weakest go to the wall.

Man is but a reed, the weakest in nature, but he is a thinking reed.

She is weakest at science.

She recognized that math was her weakest subject.

A chain fails at its weakest link.

A chain is no stronger than its weakest link.

Mathematics was his weakest subject in school.

We accumulate our opinions at an age when our understanding is at its weakest.

In critical moments even the very powerful have need of the weakest.