More gladsome can be defined as something that brings joy or happiness. The antonyms for this phrase could be anything that is gloomy, melancholic, or sad. Some examples of antonyms for more gladsome could be sad, unhappy, miserable, sorrowful, and disheartened. Alternatively, some synonyms for more gladsome could be jubilant, ecstatic, delighted, elated, and blissful. Antonyms often offer a stark contrast to the meaning of a word, and in this case, words that offer a contrasting negative quality to the positive qualities of being more gladsome.