“All at once” in Japanese
Short answer
All at once in Japanese is “一斉” (issei). Full meaning: simultaneous, all at once.
Other ways to say “All at once” in Japanese
頓に
tomini suddenly, all at once, rapidly
一度に
ichidoni all at once
勃然
botsuzen suddenly, all at once; flaring up (in anger), in a flare
耳そろえて
mimisoroete all at once (usu. of payment), at one go
いっせい
issei simultaneous, all at once
一斉に
isseini simultaneously, all at once, in unison
まとめて
matomete in one go, all at once, altogether, all in one piece
忽ち
tachimachi in an instant, in a moment, immediately, right away, at once; suddenly, all of a sudden, all at once
一齋
issei simultaneous, all at once
一せい
issei simultaneous, all at once
とみに
tomini suddenly, all at once, rapidly
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.