YOU SAID:

My boredom is rather excruciating

INTO JAPANESE

私の退屈はかなり耐え難いです

BACK INTO ENGLISH

My boredom is pretty intolerable

INTO JAPANESE

私の退屈はかなり耐えられない

BACK INTO ENGLISH

My boredom is pretty unbearable

INTO JAPANESE

私の退屈はかなり耐えられない

BACK INTO ENGLISH

My boredom is pretty unbearable