Collocations for irony - noun

great, heavy
She tried to ignore the heavy irony in his voice.

gentle
She congratulated him with gentle irony.

bitter, cruel, sad, tragic
delicious
nice
It is a nice irony that the rivalry among popes was solved by their ancient rival, the Holy Roman Emperor.

final, supreme, ultimate
The ultimate irony is that the revolution, rather than bringing freedom, actually ended it completely.

dramatic (= in a play, when a character's words carry an extra meaning that the character is not aware of)

hint, touch, trace
He thanked us all without a touch of irony.

by a … irony
By a cruel irony, he died in a crash while returning home from the war.

a certain irony
There is a certain irony in the situation.