Which term describes cheerful willingness or speed?

The term that describes cheerful willingness or speed is "alacrity." This word conveys a sense of eagerness and promptness in responding to tasks or requests. When someone acts with alacrity, they do so with enthusiasm and a readiness to engage, making it a positive attribute in various contexts, such as teamwork, service, and learning situations.

In contrast, other options reflect different meanings. Abstinence refers to the practice of refraining from certain activities or indulgences, often related to self-control or restraint. Abeyance denotes a state of temporary inactivity or suspension, which is entirely different from the idea of willingness or speed. Adegenerative, while not a commonly used term, suggests a state of degeneration or decline and does not relate to willingness or cheerful disposition. Thus, alacrity stands out as the term that correctly embodies the concept of cheerful readiness and swift action.