unbalance

verb
     
un‧bal‧ance [transitive]
1 to make a situation, relationship, or work of art not as good as it used to be or could be, especially by adding too much of one thing:
Having children can often unbalance even the closest of relationships.
2 to make someone or something unsteady, so that they are likely to fall down:
He banged against the cupboard, unbalancing a pile a books.
3 to make someone slightly crazy

Dictionary results for "unbalance"
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