Unbridled happiness is a state of joy and contentment that is not restrained or limited. It can be described as a feeling of intense joy and excitement, and is often associated with words such as GLEE and ELATION. GLEE is a four-letter word that means great joy and delight, while ELATION is a seven-letter word that means an intense feeling of joy and pride. Together, these two words accurately describe the concept of unbridled happiness.