What is the difference between びっくりした and びっくりするじゃないの?

The only thing I can think of is that one is just a general way of saying that something scared you, whilst the other is a way of "blaming" the person who did something which scared you.

Another question is, how does びっくりしたじゃないか etc. (i.e. the た form usage) differ in usage to びっくりするじゃないか?

  • Related: japanese.stackexchange.com/questions/21347/…
    – user4032
    Jun 16, 2015 at 0:08
  • 2
    – Chocolate
    Dec 23, 2016 at 3:42

3 Answers 3


びっくりした means "I'm surprised". びっくりするじゃないの means "You surprised me".

You use びっくりしたじゃないか when you are surprised. You use びっくりするじゃないか when you are about to be surprised and not surprised.


Straightly put,


means "I'm surprised!"

On the other hand,


means "Shouldn't you be surprised?"

Hope this helps.

  • @macko is asking about びっくりするじゃないの, not するんじゃないの.
    – Yosh
    Jun 17, 2015 at 2:48
  • Ahh, in this case, びっくりする is treated as a noun, negated by じゃない.
    – guestdave
    Jun 17, 2015 at 2:49
  • I'm not sure if we can consider it negation: when somebody (A) says "びっくりするじゃないか/の" to someone else, A is scared, right?
    – Yosh
    Jun 17, 2015 at 2:57

It's a little difficult to tell for certain without punctuation or context, but...

The first one almost certainly means "[I'm] Surprised" (or something like "You startled me").

The second one probably means something like "Don't Surprise me!" (As in "Don't sneak up on me!", etc.) For example, parents often say to children "~するじゃないのよ!" to mean "Don't ~". (This is colloquial).

For your second question, again, without context, it's a bit difficult to answer, but "びっくりしたじゃないか" would typically be in reference to something that just happened, to express shock like "Well that was surprising, wasn't it!"

"びっくりするじゃないか?" is more like "[That kind of thing] would surprise anyone, right?", and would more likely be used express surprise in context of something you heard on the news, etc., or suppose that it would be surprising to people in general.

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