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.
Tending to hurt someone's feelings; insulting.
Tending to impair or damage; injurious; occasioning loss or injury.