expression
anyway; in any case; at any rate
Used to introduce a conclusion or statement that holds regardless of circumstances. Similar to 何しろ, but 何にせよ is slightly more formal and often appears in written or structured speech.
See also: 何しろ (なにしろ)
何にせよ、まずはやってみよう。
Anyway, let's give it a try first.
何にせよ、彼が来るのは確かだ。
In any case, it's certain that he will come.