adverb, adverb taking the 'to' particle
staringly; fixedly; unblinkingly
Describes staring intently at something, often with surprise, curiosity, or scrutiny. Commonly used with 見る or 眺める.
See also: まじまじと見る
He stared fixedly at my face.
I stared unblinkingly at the animal I was seeing for the first time.