She is the feeblest person I have ever met.

He made a forcible attempt to open the door.

The feebless of his body prevented him from doing physical activities.

Feeblemindedness is a condition that affects cognitive abilities.

The feeblings were playing in the garden.

She spoke feeble-mindedly, struggling to find the right words.

She feeblemindedly agreed to go along with their plan.

The feeblemindednesses of the students were evident in their inability to grasp basic concepts.

The feeble-mindednesses of the students were evident in their inability to grasp basic concepts.

She looked feeblish after a long day at work.