Silly, especially at an inappropriate time or in an inappropriate manner.
Having no reasonable prospect of success because its claim is without merit, lacking a supporting legal or factual basis, while the filing party is, or should be, aware of this.
Of little weight or importance; not worth notice; slight; trivial.
Given to sudden or frequent changes of mind; temperamental.
Dour, gloomy or brooding.
Of dubious origin; counterfeit or stolen.
Sulky or depressed.