expression
even if; whether ... or ...; though
Concessive expression used to present a hypothetical or extreme condition, often paired with another にしろ or similar phrase for 'whether ... or ...' patterns. Similar to にしても but slightly more formal or written.
たとえ雨にしろ、試合は行われるだろう。
Even if it rains, the match will probably be held.
行くにしろ行かないにしろ、早く決めてください。
Whether you go or not, please decide quickly.