frivolous

This word carries a strong sense of wastefulness, whether it is a waste of money, time, or judicial resources. It describes a lack of depth or importance that often borders on the absurd or the irresponsible. In social contexts, it suggests a lightness of character that ignores gravity or consequence. In a legal setting, the term shifts from a description of personality to a technical condemnation of a claim. A frivolous lawsuit is not merely a weak case, but one that is so devoid of merit that it is seen as a bad-faith attempt to harass or obstruct.