JLPT N1
～とっさに
at once; right away; instinctively; on the spur of the moment
Structure / Usage
とっさに + Verb
Example Sentences
とっさに体が動いて、子供を助けた。
My body moved instinctively, and I saved the child.
とっさのことで、何も言えなかった。
It happened so suddenly that I couldn't say anything.