Grade 5 unfortunately Get Printable Handwriting (un-for-tu-nate-ly) 5 syllables Learn It! Spelling Test Definition adverb. 1 having bad luck; unlucky; 2 causing a difficult or harmful condition; 3 causing regret; sorry. Example Sentence Unfortunately this word is not on the list. Synonyms poor; unlucky; wretched; adverse; unhappy Antonyms fortunate; happy Share with your friends: