What is the meaning of Overcast?

A cloud covering all of the sky from horizon to horizon.

An outcast.

A place where one roadway crosses another, specifically where an airway was built across the top of another airway for ventilation purposes.

Covered with clouds; overshadowed; darkened; more than 90% covered by clouds.

In a state of depression; gloomy; melancholy.

To overthrow.

To cover with cloud; to overshadow; to darken.

To make gloomy; to depress.

To be or become cloudy.

To transform.

To fasten (sheets) by overcast stitching or by folding one edge over another.

Source: wiktionary.org