勢いきおい

noun

force; vigor; energy

Describes physical force, liveliness, or energetic spirit, often in expressions such as 勢いがある and 勢いが強い.

• 火ひの勢いきおいが急きゅうに強つよくなった。

  The force of the fire suddenly grew stronger.

• 彼かの女じょの演えん説ぜつには勢いきおいがあった。

  Her speech had energy.

noun

power; influence; authority

Used for the power or influence held by a person, family, regime, organization, or other force; somewhat common in historical or political descriptions.

• そのころ、平へい氏しの勢いきおいは非ひ常じょうに強つよかった。

  At that time, the Taira clan's power was extremely strong.

noun

momentum; impetus; impulse

Covers the forward drive of events or feelings, including doing something on impulse in the phrase 勢いで and riding momentum in 勢いに乗る.

• チームは連れん勝しょうの勢いきおいに乗のって決けっ勝しょうまで進すすんだ。

  The team rode the momentum of its winning streak all the way to the final.

• その場ばの勢いきおいで高たかい時計とけいを買かってしまった。

  I got carried away in the moment and bought an expensive watch.

adverb

inevitably; naturally; necessarily

Adverbial use meaning that something follows naturally or inevitably from the circumstances; it is more written or formal than everyday expressions such as どうしても or 結局.

• 議ぎ論ろんが長なが引びけば、勢いきおい結けつ論ろんは先さき送おくりになる。

  If the discussion drags on, the conclusion will inevitably be postponed.