The term "be-moaned" can be defined as an expression of grief or sorrow, making it a synonym of words like lamented, mourned and wept. However, if one wishes to convey the opposite meaning, antonyms such as rejoiced, celebrated, cheered or exulted could be used instead. In other words, if someone was to rejoice instead of bemoan, it would signify a state of happiness and joy instead of sadness and sorrow. It's important to choose the right words to properly convey emotions in any type of writing, and knowing antonyms can be helpful in doing so.