adverb, adverb taking the 'to' particle
perfectly; spot on; right on the mark
Describes something being exactly right, fitting perfectly, or hitting the target precisely. Often used for timing, appearance, or answers.
その答えはバッチリ合ってたよ。
That answer was spot on.
今日
Your outfit today is perfectly put together.
adverb, adverb taking the 'to' particle
thoroughly; completely; sufficiently
Indicates that something is done fully, enough, or to a satisfactory degree. Often used with verbs of preparation, study, or eating.
試験の前はバッチリ勉強した。
I studied thoroughly before the exam.
もうバッチリ食べたから大丈夫。
I've already eaten plenty, so I'm fine.
A mimetic word, likely derived from the sound-symbolic element ばち (indicating a sharp, decisive action) combined with the adverbial suffix り. The exact origin is uncertain.