Pronunciation: [seu nay pah tay reebl]
Meaning: it’s not that great
Register: informal
Notes: The French expression ce n’est pas terrible is a weird one, because the word terrible is a semi-faux ami par excellence, as it can mean either « terrible » or « terrific. » Yes, it’s true – if someone says c’est terrible ! they might mean « it’s great! » or they might mean « it’s awful! »
In the negative, ironically, terrible is usually positive, so ce n’est pas terrible (or, more familiarly,c’est pas terrible) most commonly means « it’s not so great, it’s nothing special. »
Examples
Georges adore ce vin, mais à mon avis, ce n’est pas terrible.
Georges loves this wine, but I don’t think it’s that great.
– Qu’est-ce que tu as pensé de ce film ? – Pas terrible.
– What did you think of that movie? – (It was) nothing special.
Mon École-French School 