doubtlessKK [ˋdaʊtləs] /ˈdaʊtləs/發音副詞1無疑地、肯定、確實The new policy will doubtless upset a lot of employees.新政策無疑會讓許多員工感到不滿。2想必、大概、八成表推測You are doubtless wondering why I called this meeting.你想必正在納悶我為什麼召開這場會議。形容詞1無疑的、確定的舊式Her talent is a doubtless fact that no one questions.她的才華是無人質疑的確定事實。