The state of the atmosphere at a given time and place, with respect to variables such as temperature, moisture, wind velocity, and barometric pressure. Adverse or destructive atmospheric conditions, such as high winds or heavy rain: encountered weather five miles out to sea. The unpleasant or destructive effects of such atmospheric conditions: protected the house from the weather. Changes of fortune: had known him in many weathers. To expose to the action of the elements, as for drying, seasoning, or coloring. To discolor, disintegrate, wear, or otherwise affect adversely by exposure. To come through (something) safely; survive: weather a crisis. To slope (a roof, for example) so as to shed water. Nautical To pass to the windward of despite bad weather. To show the effects, such as discoloration, of exposure to the elements: The walls of the barn had weathered. To withstand the effects of weather: a house paint that weathers well. Nautical Of or relating to the windward side of a ship; windward. Relating to or used in weather forecasting: a weather plane. weather in To experience or cause to experience weather conditions that prevent movement: The squadron is weathered in because of dense fog. Such a storm will weather the fleet in. make heavy weather of To exaggerate the difficulty of something to be done. under the weather Somewhat indisposed; slightly ill. under the weather Intoxicated; drunk. under the weather Suffering from a hangover.