insufferable

 
Pronunciation: /ɪnˈsʌf(ə)rəb(ə)l/

adjective

  • too extreme to bear; intolerable: the heat would be insufferable by July
  • having or showing unbearable arrogance or conceit: an insufferable bully

Derivatives

insufferableness

noun

insufferably

adverb

Origin:

late Middle English: perhaps via French (now dialect) insouffrable, based on Latin sufferre 'endure' (see suffer)