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TOEFL のための基本語彙 - 確信と疑い

TOEFL試験に必要な「doubt」「assure」「expect」など、確信と疑いに関する英単語を学びます。

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Essential Words Needed for TOEFL
certainty
[名詞]

the state of being sure about something, usually when there is proof

確実性 (かくじつせい), 確信 (かくしん)

確実性 (かくじつせい), 確信 (かくしん)

Ex: certainty about the project 's success helped persuade others to invest in it .
doubt
[名詞]

a feeling of disbelief or uncertainty about something

疑念 (ぎねん), 不信 (ふしん)

疑念 (ぎねん), 不信 (ふしん)

Ex: The decision was made quickly , leaving no room doubt.
confusion
[名詞]

a state of being confused and not having a clear understanding of an action, behavior, etc.

混乱 (こんらん), 迷惑 (めいわく)

混乱 (こんらん), 迷惑 (めいわく)

Ex: The new instructions were confusion as employees struggled to understand the changes .
confidence
[名詞]

a feeling of hopefulness that derives from an optimistic attitude and mindset that allows one to see the bright side of things especially future events

希望に満ちた気持ち (きぼうにみちたきもち), 楽観主義 (らくかんしゅぎ)

希望に満ちた気持ち (きぼうにみちたきもち), 楽観主義 (らくかんしゅぎ)

probability
[名詞]

the likelihood or chance of an event occurring or being true

確率 (かくりつ), 可能性 (かのうせい)

確率 (かくりつ), 可能性 (かのうせい)

Ex: probability is essential in making informed decisions in gambling and finance .
probable
[形容詞]

having a high possibility of happening or being true based on available evidence or circumstances

おそらくの, 可能性が高い

おそらくの, 可能性が高い

Ex: The archaeologist believes itprobable that the ancient ruins discovered belong to a previously unknown civilization .
to suspect
[動詞]

to think that something is probably true, especially something bad, without having proof

疑う (うたがう), 怪しむ (あやしむ)

疑う (うたがう), 怪しむ (あやしむ)

Ex: suspect the company may be hiding some important information .
to assure
[動詞]

to make someone feel confident or certain about someone or something

保証する (ほしょうする), 確信させる (かくしんさせる)

保証する (ほしょうする), 確信させる (かくしんさせる)

Ex: The assured the child of their love and support , comforting them during a difficult time .
to hesitate
[動詞]

to pause before saying or doing something because of uncertainty or nervousness

ためらう, 躊躇う

ためらう, 躊躇う

Ex: In the heated debate , the hesitated before addressing the controversial topic .
hesitation
[名詞]

the act of pausing before doing or saying something because one feels unsure

ためらい, 躊躇(ちゅうちょ)

ためらい, 躊躇(ちゅうちょ)

conviction
[名詞]

a belief or opinion that is very strong

信念 (しんねん), 確信 (かくしん)

信念 (しんねん), 確信 (かくしん)

Ex: conviction in the power of education inspired many students to pursue higher goals .
to guarantee
[動詞]

to make sure that something will occur

保証する (ほしょうする), 確実にする (かくじつにする)

保証する (ほしょうする), 確実にする (かくじつにする)

Ex: Adequate guarantees that the project will be completed on time and within budget .
to ensure
[動詞]

to make sure that something will happen

確保する, 保証する

確保する, 保証する

Ex: The ensured the safety of the passengers during the storm .
to expect
[動詞]

to think or believe that it is possible for something to happen or for someone to do something

期待する, 予想する

期待する, 予想する

Ex: expects a promotion after all his hard work this year .
speculative
[形容詞]

according to opinions or guesses instead of facts or evidence

推測的な, 投機的な

推測的な, 投機的な

Ex: She offered speculative explanation for his sudden disappearance , based on rumors she had heard .
concrete
[形容詞]

according to facts instead of opinions

具体的な, 明確な

具体的な, 明確な

Ex: The success of the project was concrete planning and meticulous execution .
undeniable
[形容詞]

clearly true and therefore impossible to deny or question

否定できない, 明白な

否定できない, 明白な

Ex: The results of the experiment undeniable, confirming the hypothesis .
debatable
[形容詞]

subject to argument or disagreement

議論の余地がある, 論争の余地がある

議論の余地がある, 論争の余地がある

Ex: The fairness of the election process has been debatable topic for years .
inevitable
[形容詞]

unable to be prevented

避けられない, 必然的な

避けられない, 必然的な

Ex: With tensions escalating between the two countries , war inevitable.
bound
[形容詞]

likely to happen or sure to experience something

必ず起こるべき, 確実に経験する

必ず起こるべき, 確実に経験する

tentative
[形容詞]

not firmly established or decided, with the possibility of changes in the future

仮の(かりの), 一時的な(いちじてきな)

仮の(かりの), 一時的な(いちじてきな)

Ex: The company made tentative offer to the candidate , pending reference checks .
convinced
[形容詞]

having a strong belief in something

確信している, 納得している

確信している, 納得している

Ex: He convinced that his idea would revolutionize the industry .
set
[形容詞]

prepared or likely prepared for something

準備が整った, 用意ができた

準備が整った, 用意ができた

inconclusive
[形容詞]

not producing a clear result or decision

決定的でない, 不確定な

決定的でない, 不確定な

Ex: The results of the experiment inconclusive, requiring further testing to reach a clear outcome .
presumably
[副詞]

used to say that the something is believed to be true based on available information or evidence

おそらく, 推定上

おそらく, 推定上

Ex: The project deadline was extendedpresumably to allow more time for thorough research and development .
to assume
[動詞]

to think that something is true without having proof or evidence

仮定する, 思い込む

仮定する, 思い込む

Ex: Right now , some team members assuming that the project deadline will be extended .
assumption
[名詞]

an idea or belief that one thinks is true without having a proof

仮定(かてい), 前提(ぜんてい)

仮定(かてい), 前提(ぜんてい)

Ex: It ’s a assumption that older cars are less reliable .
decidedly
[副詞]

in a way that is certain and beyond any doubt

明らかに, 断然

明らかに, 断然

Ex: The changes in the design decidedly for the better .
supposedly
[副詞]

used to suggest that something is assumed to be true, often with a hint of doubt

おそらく, いわゆる

おそらく, いわゆる

Ex: supposedly has insider information , but we should verify the facts before making any decisions .
doubtful
[形容詞]

improbable or unlikely to happen or be the case

疑わしい, 不確かな

疑わしい, 不確かな

Ex: The explanation doubtful, considering all the facts .
dubious
[形容詞]

causing doubt or suspicion

疑わしい, 怪しい

疑わしい, 怪しい

Ex: The companydubious financial practices raised concerns among investors .
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