There are various antonyms for the word "seventy-seven" depending on the perspective of the person. If we talk about the numerical sense, then the antonyms would be the numbers that are below 77, such as 76, 75, 74, 73, and so on. However, if we consider the word "seventy-seven" to describe a feeling or emotion, then the antonyms could be words such as "happy," "joyful," "ecstatic," or any other synonym of positivity. On the other hand, antonyms could represent negative emotion such as "sad," "miserable," "upset," and so on. Overall, the antonyms for "seventy-seven" will vary depending on the context and the perspective of the person using the word.