Subject to sudden or frequent changes.
Capable of being changed.
Capable of camouflaging itself by changing colour.
Subject to frequent changes (of direction or fortune, for example).
Lacking in flavour as a result of the leaves having been harvested during mid-season rains.
Accompanied by or featuring wind and/or precipitation.
Worn or otherwise affected by weather; (of a person's features or body) showing signs of age or wear.