In music notation, a sixteenth rest is a pause in the music lasting for one-quarter of a beat, the same duration as a sixteenth note. It is drawn as an eighth rest with a second flag in the middle of the staff.

On the staff, a sixteenth rest looks something like this:

    /\                                                     
---| /-----------------------------------------------------
   |/                                                      
---/------------------*-/----------------------------------
  /|                 *-/                                   
-/-|/\----------------/------------------------------------
|  |  |              /                                     
|--|--|----------------------------------------------------
 \ |  |                                                    
--\|_/-----------------------------------------------------
   |                                                       
  \|