1ADJ-GRADED [usually ADJ n]矫揉造作的;不自然的;做作的 If you describe some-one's behaviour or a work of art as mannered, you dislike it because it is elaborate or formal, and therefore seems false or artificial. 矫揉造作的;不自然的;做作的 [disapproval]
...Naomi's mannered voice.
娜奥米做作的嗓音
If you arrange your picture too systematically the results can look very mannered and artificial.