1.Definition: (used of eyes) open and fixed as if in fear or wonder

"Staring eyes"

Related Adjective(s):agaze

2.Definition: without qualification; used informally as (often pejorative) intensifiers

"Stark staring mad"

Related Adjective(s):arrant, complete, consummate, everlasting, gross, perfect, pure, sodding, stark, thorough, thoroughgoing, unadulterated, utter