Vexation n. : The act of vexing, or the state of being vexed; agitation; disquiet; trouble; irritation.

Vexation n. : The cause of trouble or disquiet; affliction.

Vexation n. : A harassing by process of law; a vexing or troubling, as by a malicious suit.

Example:
What gives you the most Vexation regarding religion--Islam in the main?

Taxonomy
vexation, Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, thesaurus, Google Search, Custom Search, glossary, english, language, ESL, Search, vek, 15th century, state of being, Unabridged Dictionary.

Defination from the web:
vexation from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 1 : the act of harassing or vexing : troubling. 2 : the quality or state of being vexed : irritation. 3 : a cause of trouble : affliction ...