【Anger】 , 【ire】 , 【rage】 , 【fury】 , 【indignation】 and 【wrath】 all denote emotional excitement induced by intense displeasure.

【Anger】 , the generic term of this group, names merely the emotional reaction; the word in itself suggests no definite degree of intensity and carries no necessary implication of outward manifestation. (see also: 【Anger】 vs Incense vs Enrage vs Infuriate vs Madden)

• tried to conceal his 【anger】
• easily aroused to 【anger】
• self-destroying 【anger】
• he saw the calf, and the dancing: and Moses' 【anger】 waxed hot
  —Exod 32:19

【Ire】 is literary and suggests greater intensity than 【anger】 unqualified and usually a display of that feeling in looks, acts, or words.

• Belinda burns with more than mortal 【ire】
  —Pope
• "Then, my lad, ye've come to tell me a lie!" Farmer Blaize looked straight at the boy, undismayed by the dark flush of 【ire】 he had kindled
  —Meredith

【Rage】 adds to 【anger】 the implications of lost self-control and of violent boiling over of feeling; it often connotes variously a sense of frustration, a temporary derangement of the mind, or a determination to get revenge. (see also: Fashion vs Style vs Mode vs Vogue vs Fad vs 【Rage】 vs Craze vs Dernier cri vs Cry)

• terrible and impotent 【rage】
  —Wilde
• his first hot 【anger】 against the beast had changed into a cold 【rage】 : at all costs now he must get it
  —Cloete

【Fury】 is overmastering destructive 【rage】 verging on madness. (see also: Inspiration vs Afflatus vs 【Fury】 vs Frenzy)

• what 【fury】 drove us into saying the stupid, intolerant, denunciatory things we said?
  —L. P. Smith
• the war against physical evil, like every other war, must not be conducted with such 【fury】 as to render men incapable of the arts of peace
  —Russell

【Indignation】 implies depth and intensity of 【anger】 , often righteous or generous 【anger】 , aroused by something one considers mean, shameful, or otherwise unworthy of a man or men.

• whose souls no honest 【indignation】 ever urged to elevated daring
  —Shelley
• the question now placed before society . . . is this: Is man an ape or an angel? I, my lord, I am on the side of the angels. I repudiate with 【indignation】 and abhorrence those newfangled theories
  —Disraeli

【Wrath】 may imply either 【rage】 or 【indignation】 as its emotional basis, but more strongly than either of these it suggests existence of a grievance and a desire or intent to avenge or punish or to get revenge.

• the 【wrath】 of God
• let not the sun go down upon your 【wrath】
  —Eph 4:26
• nursing her 【wrath】 to keep it warm
  —Burns