From Longman Dictionary of Contemporary Englishunbelievableun‧be‧liev‧a‧ble /ˌʌnbəˈliːvəbəl◂/ ●○○ adjective 1 SURPRISEDvery good, successful, or impressive SYN amazing The opportunities are unbelievable. an unbelievable talent2 very bad or shocking SYN terrible The pain was unbelievable. acts of unbelievable cruelty It was unbelievable that we were expected to pay twice.3 so extreme that it hardly seems possible He’s so lazy it’s unbelievable. an unbelievable speed► see thesaurus at surprising4 BELIEVEvery difficult to believe and therefore probably untrue Yvonne’s excuse for being late was totally unbelievable. —unbelievably adverb an unbelievably bad movie
Examples from the Corpusunbelievable• The story of another girl isolated at school because she is from a foreign country is at first comforting, then unbelievable.• The things he had heard about her were almost unbelievable.• It's unbelievable how nasty people can be.• It creates an unbelievable pathos for Tithonus.• Sometimes I wonder now whether I dreamed some of it, so much was just unbelievable, so grotesque.• He has unbelievable talent.• It is unbelievable that a very complex form could just come into existence out of nothing.• I find it unbelievable that Mr. Carey does not remember the meeting at all.• I find it unbelievable that Mr. Carvey has no memory of that day.• It's just so unbelievable that she's so poorly.• It was unbelievable, the demographics.• Plastic and unbelievable though the characters may be, yet realistic and true to life are the human temptations and struggles involved.• Even more unbelievable to Etherton was that there was no private photography gallery in this photography-rich city.It was unbelievable that• They were equally amazed at her. It was unbelievable that she was only the same age as many of them.