flintily
advUS /ˈflɪntəˌli/
Etymology From flinty + -ly.
1
In a flinty manner.
- He whined softly and went back to his post at the door, his eyes snapping flintily, his teeth bared.1902, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Bush Studies (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 39: