研究社 新和英中辞典

いきおい 勢い

1

〈力〉	power; force
〈気力〉	energy; vigor; spirit; life; drive
〈勢力〉	(an) influence; authority
〈はずみ〉	(an) impetus; momentum
〈傾向〉	a tendency; a trend

勢いがつく

be encouraged

【形式ばった表現】 be enlivened

【形式ばった表現】 gain vigor [force]

勢いのいい, 勢いのある

〈力のある〉 powerful

〈元気な〉 spirited; vigorous; full of life

〈活発な〉 lively; animated

勢いのない

lifeless

dull

【形式ばった表現】 spiritless

【形式ばった表現】 enervated

勢いよく

vigorously

with vigor [spirit, strength]

in high spirits

【形式ばった表現】 with great force

勢いをつける

encourage

cheer [brace] somebody up

【形式ばった表現】 enliven

勢いをそがれる

be discouraged

be dispirited

勢いを増す

gather strength [momentum]

勢いに乗じる

take advantage of the circumstances

follow up one's advantage 《over somebody》

この勢いで進めば

if things go on at this rate

時の勢いで

by force of circumstances

酒の勢いで

under the influence of liquor.

用例

この町の人口は大変な勢いで増えている. The population of this town is increasing at a great rate. その運動は当初の勢いを失って自然消滅してしまった. The movement died, having run out of momentum. 彼は酒の勢いで上司に食ってかかった. With the (Dutch) courage the sake had given him, he turned on his boss. それは自然の勢いである[勢いのしからしむるところだ]. That is the natural course of events.｜It is only natural that it should be so.

2

〈必然的に〉	inevitably; 【形式ばった表現】 necessarily; 【形式ばった表現】 of necessity
〈自然と〉	naturally; as a natural result [consequence]

用例

貧乏すると, いきおい心まで卑しくなる. If one is reduced to poverty, one's character is apt to be debased.｜【形式ばった表現】 Poverty inevitably begets a mean spirit.

斎藤和英大辞典

勢い

読み方 いきおい

名詞

1

（＝勢力）power; force; might; energy; influence; authority; vigour; spirit

用例

勢いの好い
a powerful state―a forcible style―a mighty monarch―an influential statesman―an energetic way of doing things―vigorous growth―a spirited attack

彼は大した勢いだ
He is influential―powerful―mighty.

非常な勢いで働く
He works with great force―with great energy―like fury―like anything.

勢い当たるべからず
His energy is irresistible―He is as proud as Lucifer.

勢いを振るう
to exercise one's authority

勢いをくじく
to break one's power

勢いをくじかれる
to have one's power broken

勢い鋭く攻め立てた
They went at it with spirit.

互角の勢い
The chances are even.

酒の勢いでそう言ったのだ
He said so under the influence of wine.

日本軍は破竹の勢いで進んだ
The Japanese carried everything before them.

彼は日の出の勢いだ
He is a rising man.

日の出の勢いにつく
to worship the rising sun―hail the rising sun

旭日冲天の勢い
His star is in the ascendant.

獅子奮迅の勢い
He is a raging lion.

飛ぶ鳥を落とす勢い
He nods and shakes the spheres.

始めの勢いどこへやら
His initial vigour has evaporated.

2

（＝はずみ）momentum; impetus

用例

汽車が非常な勢いで走りながら衝突したのだ
The trains collided with great impetus.

3

（＝なりゆき）course of nature; course of events; force of circumstances

用例

自然の勢い
course of nature

そうなるのは自然の勢いだ
It is in the course of nature―natural―that it should be so.

勢いの然らしむるところ
It is in the natural course of things―in the natural course of events.

天下の勢いを察する
to observe the course of events

勢い止むを得ずこうなるのだ
Things are shaped by force of circumstances.

騎虎の勢いでやむを得ず競争したのだ
I was obliged by force of circumstances to engage in competition―（他動詞構文にすれば）―Circumstances obliged me to engage in competition.

勢い既に定まる
Things have taken a definite course.

勢い定まれば変ず
“When things are at their worst, they will mend.”

勢いに乗ずる
to swim with the stream―go with the current

智ありといえども勢いに乗ずるに如かず
The wise will go with the current.

あまり勢いに乗じて失敗した
He failed by suffering himself to be carried away by his initial successes.

副詞

（＝自然、当然、必然）naturally; in the nature of things; as a natural consequence; as a matter of course; by force of circumstances; of necessity

用例

勢い実力が勝つ
It is in the nature of things―natural―that real ability should win.

勝った者が勢い天下を取る
The victor makes himself master of the realm as a natural consequence―as a matter of course.

勢いやむを得ず競争することになったのだ
I was obliged by force of circumstances to engage in competition.

勢いそうならざるを得ぬ
It must of necessity be so―It must needs be so.

JMdict

勢い

読み方：いきおい

勢 とも書く

(1)

（副詞、名詞） force; vigor; vigour; energy; spirit; life

(2)

influence; authority; power; might

(3)

impetus; momentum; course (of events)

(4)

（副詞的名詞） naturally; necessarily

JST科学技術用語日英対訳辞書

勢い

force

ライフサイエンス辞書

勢い

*** いきおい

(n) vigor **

(n) power ****

(n) energy ****

関連語

エネルギー, 力, 能力, 羃乗, 威力, 検出力, 力を与える, 動力を供給する, 冪乗

同義語（異表記）

Empowerment

energy

force

Personal Power

Power (Psychology)

Professional Power

Social Power

vigor

エネルギー

威力

勢い

羃乗

用例

power of [〜の威力]

The power of this procedure was significantly increased by introducing antagonists that inhibited the cellular response from selected ligand-receptor interactions. (Proc Natl Acad Sci USA)

power of these genetic systems has revealed many genetic factors involved in the various pathways affected, as well as provided potential drug targets for therapeutics. (Annu Rev Genet)

These neurons took longer for the selective responses to emerge and showed a lower power of discrimination. (J Neurosci)

Planaria possess remarkable powers of regeneration. (Dev Biol)

the fourth power of [〜(数値)の4乗]

The inactivation rate increased with the fourth power of [Ca2+] suggesting that the functional channel may be a tetramer. (J Physiol)

F was adequately fit to the fourth power of Q. (Biophys J)

Because neurotransmitter release is proportional to the fourth power of calcium concentration, regulation of its entry can profoundly influence neurotransmission. (Nature)

概念ツリー

行動および行動メカニズム　Behavior and Behavior Mechanism

動機づけ　Motivation

力　Power

vigorの共起表現

powerの共起表現

energyの共起表現

日本語WordNet(英和)

勢い

【名詞】

1 force, force-out, force out, force play

走らなければならないランナーを刺殺すること

(a putout of a base runner who is required to run)

the shortstop got the runner at second on a force ショートは勢いで2番走者をアウトにした

2 strength, force, forcefulness

物理的な力、または強さ

(physical energy or intensity)

he hit with all the force he could muster 彼は奮い起こせる限りの力で打った it was destroyed by the strength of the gale それは強風の力によって破壊された a government has not the vitality and forcefulness of a living man 政府には、生きている人間の持っている生命力や力強さがない

3 momentum, impulse

推進する力または強さ

(an impelling force or strength)

the car's momentum carried it off the road その車は、自らの勢いのために道路から外れてしまった

>>「勢い」に関する類語一覧

EDR日英対訳辞書

勢い

読み方 イキオイ

vivacity

日英固有名詞辞典

勢い

日本人名前

読み方	英語式	ヘボン式	訓令式	ワープロ式
せい	Sei	Sei	Sei	Sei

クロスランゲージ 37分野専門語辞書

勢い

vigor; impetus; speed; strength; muscle; momentum; spirit; power; force; energy; steam; impulse