This is the adverb of 'unfailing': it means always, every single time, without ever once slipping — and it usually carries a note of quiet admiration for someone who kept it up when it was hard.

This is the adverb of 'unfailing'這是unfailing的副詞形式：it means always, every single time, without ever once slipping意思是總是、每一次都這樣，一次都沒失手過——and it usually carries a note of quiet admiration而且通常帶著一絲不張揚的讚賞，for someone who kept it up when it was hard讚賞那個在困難時依然維持住的人。

Its main job is to sit in front of an adjective describing a person: unfailingly polite, unfailingly kind, unfailingly cheerful, unfailingly patient, unfailingly generous, unfailingly courteous. That pattern — 'unfailingly + nice adjective' — is where you will meet it almost every time. It can also modify a verb ('she unfailingly remembers everyone's birthday'), though that is less common and sounds a little formal.

Its main job is to sit in front of an adjective describing a person它主要的工作是放在描述人的形容詞前面：unfailingly polite, unfailingly kind, unfailingly cheerful, unfailingly patient, unfailingly generous, unfailingly courteous像unfailingly polite一貫地有禮、unfailingly kind一貫地親切、unfailingly cheerful一貫地開朗、unfailingly patient一貫地有耐心、unfailingly generous一貫地大方、unfailingly courteous一貫地彬彬有禮。That pattern — 'unfailingly + nice adjective' —那個「unfailingly加正面形容詞」的模式，is where you will meet it almost every time幾乎就是你每次遇到這個字的地方。It can also modify a verb它也可以修飾動詞('she unfailingly remembers everyone's birthday'像she unfailingly remembers everyone's birthday她總是一次不漏記得每個人的生日)，though that is less common and sounds a little formal雖然這種用法比較少見，聽起來也比較正式。

Compare it with 'always'. 'She is always polite' just reports a fact. 'She is unfailingly polite' adds that there were chances to be otherwise and she never took one; it praises the person for holding steady. That extra layer is the reason the word exists at all.

Compare it with 'always'拿它跟always比較一下。'She is always polite' just reports a fact「She is always polite她總是很有禮貌」只是在陳述一個事實。'She is unfailingly polite' adds that there were chances to be otherwise「She is unfailingly polite她一貫地有禮」多加了一層意思：本來有機會不這樣，and she never took one但她一次都沒有那樣做；it praises the person for holding steady這是在稱讚這個人始終如一。That extra layer is the reason the word exists at all這多出來的一層意思正是這個字存在的理由。

Register: formal and warm — references, tributes, thank-you speeches, book reviews, obituaries. In casual conversation you would say 'she's polite to everyone, no matter what.' There is one small mischief worth knowing: because it sounds so complimentary, English writers sometimes use it drily, to praise something faintly or with a raised eyebrow — 'the food was unfailingly beige'.

Register: formal and warm語域：正式又溫暖——references, tributes, thank-you speeches, book reviews, obituaries像推薦信、頌詞、感謝致詞、書評、訃聞。In casual conversation you would say 'she's polite to everyone, no matter what.'在輕鬆的對話裡你會說「she's polite to everyone, no matter what不管怎樣她對每個人都很有禮貌」。There is one small mischief worth knowing有一個小小的調皮用法值得知道：because it sounds so complimentary因為它聽起來太像稱讚了，English writers sometimes use it drily英文作者有時候會故意乾巴巴地用它，to praise something faintly or with a raised eyebrow帶點保留、或挑著眉毛地稱讚某件事——'the food was unfailingly beige'像the food was unfailingly beige這道菜一貫地很平淡無奇。

You will only catch that from the surrounding sentence, and A2 students are not expected to. But it exists, and now you know.

You will only catch that from the surrounding sentence你只能從前後文才抓得到那個意思，and A2 students are not expected to而A2程度的學生本來就不需要抓到。But it exists但它確實存在，and now you know現在你知道了。