The reliableness of the old truck surprised everyone when it started without hesitation on a freezing morning.

In a crisis, the community turns to the reliables who never let anyone down.

The engineer compared the reliabilities of the two sensors before approving the design.

Carla is the reliable everyone turns to in a crisis.

Our backup system must operate reliably during power outages.

The reliable backup generator kept the hospital running during the power outage.

The engineer emphasized the reliability of the new backup system during the meeting.