一ひと言ことで言いえば

expression

in a word; to put it briefly

Used to summarize or give a concise opinion, often at the beginning of a sentence.

• 一ひと言ことで言いえば、それは無む理りだ。

  In a word, it's impossible.

• この映えい画がを一ひと言ことで言いえば、感かん動どう的てきだった。

  To put it briefly, this movie was moving.