'Vexatious suit' definitions:

Definition of 'Vexatious suit'

From: GCIDE

Vexatious \Vex*a"tious\, a. [See Vexation.]
1. Causing vexation; agitating; afflictive; annoying; as, a vexatious controversy; a vexatious neighbor. "Continual vexatious wars." --South. [1913 Webster]
2. Full of vexation, trouble, or disquiet; disturbed. [1913 Webster]
He leads a vexatious life. --Sir K. Digby. [1913 Webster]
Vexatious suit (Law), a suit commenced for the purpose of giving trouble, or without cause. [1913 Webster] -- {Vex*a"tious*ly}, adv. -- {Vex*a"tious*ness}, n. [1913 Webster]