American Heritage Dictionary
(1)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Past mistakes are irremediable, and it behooves me to consider only the future.— Infelice
"But the past is irremediable, and I did not come hither to exculpate myself, I came to save your life," he added, turning to Thames I was not aware it was in danger," rejoined Darrell Then you ought to be thankful to me for the warning.— Jack Sheppard A Romance
It was feared that the loss of his valuable wardrobe would be irremediable, as indeed it was in a certain sense.— Great Fortunes, and How They Were Made

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.