トライアルアンドエラーでしょう
toraiaruandoerādeshō
1. Trial and error, likely.; Probably by trial and error.
Noun
#251927
1. Trial and error, likely.; Probably by trial and error.
1. error
2. fumble that leads to failing to put out a runner
1. Stars and Stripes (US flag)
2. Stars and Stripes (newspaper)
1. copy-and-paste
2. copypasta (block of text that is copied and pasted across the Internet)
1. trial
1. and
2. AND (Boolean operator)
1. it seems; I think
2. right?; don't you agree?
1. It was a mistake.; It was an error.
1. It's not an error.; It isn't a mistake.
1. It is an error.; There is an error.