In Tkinter,minsize() method is used to set the minimum size of theTkinter window. Using this method user can set window's initialized size to its minimum size, and still be able to maximize and scale the window larger. 

Syntax:

master.minsize(width, height)

Here, height and width are in pixels. 

Code #1: Root window without minimum size that means you can shrink window as much you want. 

# importing only  those functions# which are neededfromtkinterimport*fromtkinter.ttkimport*fromtimeimportstrftime# creating tkinter windowroot=Tk()# Adding widgets to the root windowLabel(root,text='GeeksforGeeks',font=('Verdana',15)).pack(side=TOP,pady=10)Button(root,text='Click Me !').pack(side=TOP)mainloop()

Output: Initial root window without alteration in size

Root window after shrunken down, see the window is completely shrunken because it has no minimumgeometry. 

Code #2: Root window with minimum size. 

# importing only  those functions# which are neededfromtkinterimport*fromtkinter.ttkimport*fromtimeimportstrftime# creating tkinter windowroot=Tk()# setting the minimum size of the root windowroot.minsize(150,100)# Adding widgets to the root windowLabel(root,text='GeeksforGeeks',font=('Verdana',15)).pack(side=TOP,pady=10)Button(root,text='Click Me !').pack(side=TOP)mainloop()

Output: Initial window

Expanded window (we can expand window as much as we want because we haven't set the maximum size of the window). 

Window shrunken to it's minimum size (one cannot shrunk it any further).

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