intolerant

Etymology

From French intolérant.

adj

1. Unable or indisposed to tolerate, endure or bear.
   I am lactose-intolerant, so I can't drink milk.
   When our bodies no longer create the enzyme needed to break down lactose, we can become intolerant to it. 2013, Sarah Taylor, Vegetarian to Vegan: Give Up Dairy, Give Up Eggs for Good
   The oak, as is well known, is a slow-growing, dicotyledonous tree of peculiar spreading habit, and very intolerant of shade. 1892, Harry Marshall Ward, The Oak: A Popular Introduction to Forest-botany
   The powers of human bodies being limited and intolerant of excesses. 1751, John Arbuthnot, An Essay Concerning the Effects of Air on Human Bodies
2. Not tolerant; close-minded about new or different ideas; indisposed to tolerate contrary opinions or beliefs; impatient of dissent or opposition; denying or refusing the right of private opinion or choice in others; inclined to persecute or suppress dissent.

noun

1. One who is intolerant; a bigot.
   […] a portion of the prejudice which darkened the spirits of these intolerants, might perhaps have cast its shadow over him. 1856, John David Chambers, Strictures, legal and historical, on the judgment of the Consistory Court of London, in December, 1855, in the Case of Westerton Versus Liddell