Definition of obnoxiety in US English:

obnoxiety

noun

rare
  • Originally: †the state of being liable to something; liability (obsolete). Now: offensiveness, objectionableness, odiousness.

Origin

Mid 17th century; earliest use found in Thomas Blount (1618–1679), antiquary and lexicographer. From post-classical Latin obnoxietas subjection, submission, liability from classical Latin obnoxius + -etās.