決(き)め手(て)

きめて
noun
deciding factor
1. deciding factor; clincher; trump card
The key element or move that determines an outcome. Used for the decisive factor in competitions, negotiations, arguments, or choices.
決(き)め手(て)に欠(か)ける。
To lack a deciding factor.
購入(こうにゅう)の決(き)め手(て)は価格(かかく)だった。
The deciding factor for the purchase was the price.
The evidence was insufficient, and there was no clincher for a guilty verdict.

Usage

決(き)め手(て) literally combines 決(き)める (to decide) and 手(て) (hand/move), originally referring to a decisive move in sumo or martial arts. It now broadly means any deciding factor. The phrase 決(き)め手(て)に欠(か)ける (to lack a deciding factor) is very common and means that nothing stands out enough to tip the balance.

Common collocations