Usage patterns あいにくの 〈 事こと 〉 unfortunate (weather, timing, circumstances, etc.)
Unfortunately, because of the rain, the picnic was cancelled.
あいにく 〈 人ひと 〉 は 〈 場ば 所しょ 〉 に 〈 動どう 詞し 〉 unfortunately, [person] is not at [place]
I'm sorry, but the manager isn't at his desk right now.
あいにくですが 、 〈 事こと 〉 unfortunately, ... (used to soften bad news or a refusal)
I'm afraid I already have plans that day.
Related words 残念ながら is more formal and explicitly expresses regret, while あいにく is softer and more conversational, often used to preface a small inconvenience.
運悪く emphasizes bad luck as the cause, whereas あいにく can describe any unfortunate timing or mismatch, not just luck.
折悪しく is a more literary, old-fashioned way of saying 'at an inopportune moment,' while あいにく is the common everyday equivalent.
あいにく is a casual, everyday way to say something happened unluckily, whereas 不幸にも is more formal and often used in written or narrative contexts.
Opposites 幸いにも means 'fortunately,' the opposite of あいにく 's 'unfortunately.'
あいにく means 'unfortunately', describing an outcome that disappoints, the opposite of the relief expressed by 幸いなことに .
Written forms あいにく Usage 80%
Usually written in kana. The kanji form 生憎 is ateji and rare.
生憎あいにく Usage 20%
ateji (phonetic kanji usage)
Ateji kanji form; rarely used in modern writing.
Etymology Derived from the classical adjective あいなし (meaning 'unsuitable' or 'unfortunate') with the adverbial suffix く . The kanji 生憎 are ateji (phonetic equivalents) and do not reflect the word's origin.
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