Chronic stress proved to be a powerful weakener of her immune system.

Researchers identified several weakeners that reduced the durability of the new polymer.

The weak-minded manager ignored the safety warnings, putting everyone at risk.

She remained weak-willed, agreeing to every plan her friends suggested despite her reservations.

After days of rain, the hayloft was heavy with weakiness, and the farmers covered the bales to keep them dry.

Local anglers were excited when they found a school of weakfishes near the pier during the early spring run.

The patient complained that the weak sores on his arms were slow to heal.

The physician frowned at the weak sore on the patient's arm, noting its pale, flabby granulations.

She weak-heartedly declined the invitation, afraid of meeting new people.

Despite her confident smile, she was weak-hearted when it came to confronting her boss.