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