Tactful is the adjective for tact. It describes someone who is careful with other people's feelings when saying something difficult, or it describes the words and acts themselves — a tactful reply, a tactful question, a tactful silence. So it works two ways.

Tactful Tactful is the adjective for tact是 tact 這個名詞的形容詞形式 It它 describes someone who is careful with other people's feelings when saying something difficult用來形容一個在說難以啟齒的話時、會顧慮別人感受的人 or it describes the words and acts themselves或是用來形容那些話語和行為本身 a tactful reply, a tactful question, a tactful silence像是 a tactful reply（得體的回答）、a tactful question（得體的提問）、a tactful silence（得體的沉默） So所以 it works two ways這個詞有兩種用法

Applied to a person, it says this is how they generally are: 'she's very tactful' means you can trust her with an awkward conversation. Applied to a thing, it praises one particular choice: 'that was a tactful way of putting it' means the words were well chosen for this moment, whoever chose them.

Applied to a person用在一個人身上時 it says this is how they generally are是在說這個人一向如此 'she's very tactful'像「she's very tactful」（她很懂得拿捏分寸） means you can trust her with an awkward conversation意思是你可以放心讓她處理尷尬的對話 Applied to a thing用在一件事情上時 it praises one particular choice是在稱讚某個特定的選擇 'that was a tactful way of putting it'像「that was a tactful way of putting it」（那樣說法很得體） means the words were well chosen for this moment意思是這些話在這個當下選得很好 whoever chose them不管是誰選的

A useful pattern to hold on to is 'it would be more tactful to…', which is how English quietly suggests a better way of doing something without criticising the first way outright. You will also meet 'a tactful way of saying', which often introduces a gentle euphemism — 'he's between jobs' is a tactful way of saying he is unemployed.

A useful pattern to hold on to一個值得記住的句型是 'it would be more tactful to…'「it would be more tactful to…」（比較得體的做法是…） which is how English quietly suggests a better way of doing something這是英文用來委婉建議更好做法的方式 without criticising the first way outright而不直接批評原本的做法 You will also meet 'a tactful way of saying'你也會看到「a tactful way of saying」（得體的說法）這個用法 which often introduces a gentle euphemism它常常是用來引出一個委婉的說法 'he's between jobs' is a tactful way of saying he is unemployed像「he's between jobs」（他正處於待業階段）就是用來委婉表示他失業了的說法

Watch the shape of the opposite, since students get it wrong constantly. The opposite is tactless, not untactful. A tactless remark is one that hits a sore spot because the speaker did not stop to think — clumsy rather than cruel. That distinction is exactly why English keeps the word: it lets you criticise the thoughtlessness without accusing anyone of unkindness.

Watch the shape of the opposite要注意反義詞的形式 since students get it wrong constantly因為學生老是搞錯 The opposite反義詞 is tactless是 tactless not untactful而不是 untactful A tactless remark一句 tactless 的話 is one that hits a sore spot是那種戳到痛處的話 because the speaker did not stop to think因為講的人沒有停下來想一想 clumsy rather than cruel是笨拙而不是殘忍 That distinction這個區別 is exactly why English keeps the word正是英文保留這個詞的原因 it lets you criticise the thoughtlessness它讓你可以批評對方的不用心 without accusing anyone of unkindness而不是指控對方不善良

Register is neutral, leaning slightly formal. It sits comfortably in ordinary conversation, and it is a common word in job descriptions and in advice about how to deal with people.

Register語氣 is neutral, leaning slightly formal是中性的，稍微偏正式一點 It它 sits comfortably in ordinary conversation在日常對話裡用起來很自然 and it is a common word in job descriptions也常出現在職缺說明裡 and in advice about how to deal with people以及教人如何應對他人的建議文章裡