下手へたすれば

expression

if things go wrong; at worst; if one is unlucky or careless

Used to describe a possible negative outcome, often implying that a small mistake or bad luck could lead to a serious result. Similar to 下手すると.

See also: 下手すると

• 下手へたすれば大だい事じ故こになっていたかもしれない。

  If things had gone wrong, it could have been a major accident.

• この計けい画かくは下手へたすれば失しっ敗ぱいする。

  This plan could fail if we're not careful.