Synonyms for Vexatious:

adj.

distressing, bothersome (adjective)
provoking, teasing, disagreeable, troublesome, disturbing, Irksome, irritating, annoying, pesky.
galling (adjective)
galling.
irritating (adjective)
nettlesome.

n.

pathetic, unbearable, obscene. troublesome, pain, provoking, Irksome. annoying (noun)
disturbing.
vexatious (noun)
irritating, pesky, disagreeable, vexing, nettlesome, pestiferous, galling, plaguey, annoying, plaguy, bothersome, teasing, pestering.

Other synonyms:

troublesome, Irksome, provoking. disquieting
disturbing.
Other relevant words:
pathetic, unbearable, pain, Irksome, provoking, obscene, disturbing, troublesome.

Usage examples for vexatious

  1. At last, after many delays and vexatious troubles, Cecil found himself the actual possessor of the corner of land wherein lay buried John Cann's treasure. – The Beckoning Hand and Other Stories The Beckoning Hand--Lucretia--The Third Time--The Gold Wulfric--My Uncle's Will--The Two Carnegies--Olga Davidoff's Husband--John Cann's Treasure--Isaline and I--Professor Milliter's Dilemma--In Strict Confidence--The by Grant Allen
  2. All this vexatious delay has vanished. – Cities of the Dawn by J. Ewing Ritchie
  3. To my own, in which a feeble and imitative faith was expiring, it was deeply vexatious – Father and Son by Edmund Gosse