もかまわず
Usage
Used to epress the "basically there is a problem, but one does not care about it"
V / い / な / Nな + の + もかまわず
Examples
彼女は服が汚れるのもかまわず、公園で犬と遊んでいる
She played in the park with her dog without worrying about her clothes getting dirty
あの男は人目もかまわず、電車の中で弁当を食べている
That man is eating his lunch box on the train without worrying about being looked at