1. most pointed or having the most peaks; sharpest in form
Usage: superlative form of peaky
2. most sickly or wan in appearance; palest and most drawn
Usage: superlative form of peaky; informal

Examples

• The peakiest mountain in the range dominated the skyline.
• Of all the jagged rocks, this one had the peakiest edges.
• After the flu, she looked the peakiest of all the patients.
• The peakiest child in class was sent to the nurse.
• His face appeared peakiest in the harsh fluorescent lighting.
• The peakiest waves crashed against the rocky shore.