If something is thinkable, a person can hold it in their mind as a real possibility — it can be imagined, considered, seriously entertained.

If something is thinkable如果一件事是thinkable（可想像的）， a person can hold it in their mind一個人可以把它放在腦子裡 as a real possibility當作一個真實的可能性—— it can be imagined, considered, seriously entertained它可以被想像、被考慮、被認真看待。

Here is the honest thing about this word: in real English you will meet its opposite, unthinkable, ten or twenty times for every once you meet thinkable. Unthinkable is a very common everyday word ('war between them was unthinkable').

Here is the honest thing about this word老實說這個字有件事要說清楚： in real English在真實的英文裡 you will meet its opposite, unthinkable你遇到它的反義詞unthinkable的次數， ten or twenty times會是遇到thinkable本身的 for every once you meet thinkable十倍、二十倍。 Unthinkable is a very common everyday wordUnthinkable是非常常見的日常字 ('war between them was unthinkable')（像「他們之間開戰是不可想像的」）。

Thinkable on its own sounds bookish, and it turns up mostly in philosophy, in argument, or in a deliberate answering-back move — where a writer takes something that used to be unthinkable and says it has now become thinkable. That is really its home: it marks a change, the moment an idea crosses from impossible-to-imagine into imaginable.

Thinkable on its own單獨用thinkable sounds bookish聽起來很書面， and it turns up mostly而且大多出現 in philosophy, in argument在哲學、在論證裡， or in a deliberate answering-back move或是一種刻意的「回應」寫法—— where a writer takes something that used to be unthinkable作者拿一件本來不可想像的事 and says it has now become thinkable說它現在變得可以想像了。 That is really its home這才是它真正的落腳處： it marks a change它標記一種轉變， the moment an idea crosses就是一個想法從 from impossible-to-imagine into imaginable從「無法想像」跨進「可以想像」的那一刻。

So it usually needs a 'now', a 'suddenly', or a 'once' near it to make sense. If you simply mean that something is possible or believable, say possible or believable; thinkable will sound strange there.

So it usually needs所以它通常需要 a 'now', a 'suddenly', or a 'once' near it旁邊有個「now」「suddenly」或「once」 to make sense才說得通。 If you simply mean that something is possible or believable如果你只是想說一件事是可能的或可信的， say possible or believable就說possible或believable； thinkable will sound strange there用thinkable在那裡會很怪。