"Wert earnest" is a phrase that denotes seriousness or sincerity towards a task, goal, or action. There are several synonyms that can be used to convey the same meaning, including dedicated, committed, focused, determined, zealous, passionate, resolute, unwavering, sincere, genuine, wholehearted, and ardent. Each of these words describes someone who is fully invested in their task or objective and is willing to go to great lengths to achieve it. In order to convey that a person is serious about something, it is helpful to choose a word that emphasizes their commitment and determination, such as resolute or zealous.