unblinking
adjectiveUK /ʌnˈblɪŋkɪŋ/
US /ʌnˈblɪŋkɪŋ/
Not closing your eyes even for a moment.
The cat watched the bird with unblinking eyes.
OTHER MEANINGS
2. Showing no fear or doubt; very sure of yourself.
She gave an unblinking answer to the hard question.
3. Not stopping or slowing down at all.
The machine ran with unblinking speed all night.
4. Looking at something for a long time without looking away.
His unblinking stare made everyone feel nervous.