“庄重的”的英语？

门口站着一位穿戴整齐、仪态庄重的男子。At the door was a neatly dressed, dignified man.他喜欢一种寂静庄重的气氛。He liked a hushed and dignified atmosphere.对于他这种地位的人来说,这样的行为是不庄重的.Such conduct is undignified for a person of his position....