unbalance
verb
[ ʌnˈbal(ə)ns ]
• make (someone or something) unsteady so that they tip or fall.
• "the door almost unbalanced him by swinging open"
• upset or disturb the equilibrium of (a situation or person's state of mind).
• "this sharing can often unbalance even the closest of relationships"
unbalance
noun
• a lack of symmetry, balance, or stability.
• "an unbalance between the currents in the live and neutral wires"