--> Irretrievably has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings i & etrievably which should not be misspelled with single 'R'
Wrong Spelling:  i-r-etrievably 
Correct Spelling:  i-rr-etrievably 
Find more wrongly spelled words of Irretrievably to spell it well.