SHARP-SIGHTED Copy link • SHARP-SIGHTEDPROP., acute cernens: acri visu. To be sharp-sighted, acute cernere: to be very sharp-sighted, acerrimo esse visu. Figuratively, perspicax (that sees things at a glance): sagax (that has a thorough insight into things; e.g., sagax ad suspicandum; sagax ad pericula perspicienda).