The unabling of critical safety systems after the earthquake caused widespread alarm among engineers.

He unably tried to open the jammed door and had to call for help.

Her unability to speak up during meetings cost the team important opportunities.

To be unable to believe one's eyes is exactly how people felt when they saw the statue's lifelike features.

Of all the interns, Maya was the unablest to meet the tight deadlines, yet she learned quickly.