Something unplanned happens without anyone having arranged it beforehand — no schedule, no decision, no preparation. It covers a wide range of feelings depending on what it describes.

Something unplanned某件沒有計畫的事 happens發生時 without anyone having arranged it beforehand沒有任何人事先安排過 — no schedule, no decision, no preparation沒有排程、沒有決定、也沒有準備。 It它 covers a wide range of feelings會帶來各種不同的感受 depending on what it describes要看它形容的是什麼事。

A trip that turns into an unplanned night in a small town can be a happy accident, the best part of the holiday. An unplanned stop, an unplanned delay, unplanned expenses, an unplanned power cut: those are the awkward kind, things that pushed into your day uninvited.

A trip一趟旅行 that turns into an unplanned night in a small town如果變成在小鎮上一個沒計畫的夜晚 can be a happy accident可能是個令人開心的意外, the best part of the holiday是整趟假期裡最棒的部分。 An unplanned stop, an unplanned delay, unplanned expenses, an unplanned power cut像沒計畫的停靠、沒預期的延誤、意外的開銷、突然停電: those are the awkward kind這些是比較麻煩的那種, things that pushed into your day uninvited是不請自來闖進你這一天的事。

And there is one very common set phrase you should know because people say it carefully: 'an unplanned pregnancy'. English chose 'unplanned' here on purpose, because it is gentler and less judging than older words like 'accidental' or 'unwanted' — it says only that this was not arranged in advance, and nothing about whether the baby is welcome.

And而且 there is one very common set phrase有一個非常常見的固定說法 you should know你應該知道 because people say it carefully因為大家講的時候都很小心: 'an unplanned pregnancy'就是「an unplanned pregnancy（非計畫中的懷孕）」。 English英文 chose 'unplanned' here on purpose在這裡特意選了「unplanned」這個字, because it is gentler and less judging因為它比較溫和、比較不帶批判 than older words like 'accidental' or 'unwanted'比起「accidental」或「unwanted」這些比較舊的字 — it says only它只是說 that this was not arranged in advance這件事沒有事先安排過, and nothing about whether the baby is welcome完全沒說這個孩子受不受歡迎。

Grammatically it sits happily before a noun ('unplanned changes') or after be ('the meeting was completely unplanned').

Grammatically在文法上, it它 sits happily before a noun可以自在地放在名詞前面 ('unplanned changes')（像「unplanned changes」） or after be或放在 be 動詞後面 ('the meeting was completely unplanned')（像「the meeting was completely unplanned」）。

Compare it with its neighbours: 'unexpected' is about surprise — you did not see it coming; 'unplanned' is about arrangement — nobody set it up. They often overlap, but not always. You can fully expect an unplanned expense to appear at some point without having planned any particular one.

Compare it with its neighbours拿它跟意思相近的字比較: 'unexpected' is about surprise「unexpected」講的是意外 — you did not see it coming是你沒料到會發生; 'unplanned' is about arrangement而「unplanned」講的是安排 — nobody set it up是沒有人去安排過。 They它們 often overlap常常會重疊, but not always但不是每次都一樣。 You你 can fully expect an unplanned expense可以完全預期會有一筆沒計畫到的開銷 to appear at some point在某個時間點出現 without having planned any particular one卻沒有事先規劃是哪一筆。