Misstep – Slip-up – 「誤った・間違え」 – アメリカのスラング ＆ カジュアル英語表現 2,000

Casual English Phrases – #1,086

□ slip up 　単純（簡単な）間違えをする
ex) He slipped up by calling his girlfriend by his ex’s name.
彼は ガールフレンドを 昔の恋人の名前で 間違えて 呼んでしまった

slip up /ˈslɪp/: careless error
ex) Make sure you don’t slip up again.

□ slip-up 間違え
ex) She made several verbal slips-ups on the radio program.
ラジオ番組で、いくつかの言い間違えをした

slipup /ˈslɪpˌʌp/: a careless mistake
ex) We were late because of a slip-up in the schedule.

□　make a slip 間違えを犯す
ex) I made a slip and said more than I should.
間違えて 要らぬことを言ってしまった

make a slip /ˈslɪp/: to make a small mistake
ex) Even one little grammatical slip can have the opposite effect.

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proved wrong /ˈrɑːŋ/: to show to be false
ex) Our philosophers, instead of attempting to prove his theory wrong, have simply picked at some of his details.

Casual English Phrases – #1,087

□ misstep　　　　間違え、過失
ex) Despite a few missteps the game went smoothly for us.
いくつかのミスはあったが、試合は順調に進みました

misstep /ˌmɪsˈstɛp/: an action or decision that is a mistake
ex) Their decision to relocate the company was a major misstep.

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英検１級を目指す方へ – ワンランク上の 英語表現 – 1,000

Advanced English Expressions – #528

□ delusion 誤った信念・考え、（判断などを）欺くこと、騙すこと、思い込み
ex) He has delusions about how much money he can make at that job.
彼は その仕事で 収入が いくらになるかを間違えて考えている

delusion /dɪˈluːʒən/: a belief that is not true : a false idea
ex) He is living/laboring under the delusion that he is incapable of making mistakes.

英検１級を目指す方へ – ワンランク上の 英語表現 – 1,000

Advanced English Expressions – #671

□ delude 人を騙す、欺く
ex) He was deluded [=deceived] by their lies.
彼らの嘘に 騙された

ex) They deluded themselves into believing their team would win.
彼らは 自分たちのチームが勝つと 自らを信じ込ませた

delude /dɪˈluːd/: to cause (someone) to believe something that is not true
ex) If she thinks I care, she’s deluding [=fooling] herself.

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mistaken /məˈsteɪkən/: incorrect or wrong
ex) He ignored the law in the mistaken belief that he was immune from punishment.

Casual English Phrases – #1,088

□ mistaken identity （犯罪捜査など）誤った認識、人違い
ex) The police arrested someone, but it turned out to be a case of mistaken identity.
警察が逮捕した人物は 人違いであることが分かった

ex) Several cases of mistaken patient identity have been recorded.
診療中の 人違い治療が 数件記録されている

mistaken identity /aɪˈdɛntəti/: a defense in criminal law which claims the actual innocence of the criminal defendant
ex) ex) The student handcuffed and jailed for two weeks was a victim of mistaken identity.

by mistake /məˈsteɪk/: without intending to
ex) I got on the wrong train by mistake. = accidentally

make no mistake /məˈsteɪk/: do not be deceived into thinking otherwise
ex) Make no mistake (about it), if we don’t address these problems now, they will only get worse.