causing or tending to cause annoyance, frustration, or worry:the vexatious questions posed by software copyrights
Law denoting an action or the bringer of an action that is brought without sufficient grounds for winning, purely to cause annoyance to the defendant:a frivolous or vexatious litigant
Derivatives
vexatiously
adverb
vexatiousness
noun
vexatious in other Oxford dictionaries
Definition of vexatious in the US English dictionary
