Of little weight or importance; not worth notice; slight; trivial.
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.
Silly, especially at an inappropriate time or in an inappropriate manner.
Light or delicate; slight; thin.
Done with, and marked by, artful and dexterous secrecy; subtle
Artfully cunning; secretly mischievous; wily.
Dexterous in performing an action, so as to escape notice
Slyly.