un ‧ print ‧ a ‧ ble /ʌnˈprɪntəb ə l/ BrE AmE adjective
[ Word Family: noun : ↑ print , ↑ printer , ↑ printing ; adjective : printed, ↑ printable ≠ ↑ unprintable ; verb : ↑ print ]
words or remarks that are unprintable are so rude or shocking that you do not want to say what they are