thankful Syllabification: (thank·ful)Pronunciation: /ˈTHaNGkfəl/Translate thankful | into French | into German | into Italian | into Spanish Definition of thankful adjective pleased and relieved: [with clause]:they were thankful that the war was finally over [with infinitive]:I was very thankful to be alive expressing gratitude and relief:an earnest and thankful prayerDerivatives thankfulness noun Origin: Old English thancful (see thank, -ful)thankful in other Oxford dictionaries Definition of thankful in the British & World English dictionary