clear to the mind; with distinct mental discernment

to a distinct degree

not clearly defined or easy to perceive or understand

the quality of being sharp and clear

readily apparent to the mind

precise; explicit and clearly defined

sharply exact or accurate or delimited

having a clean and distinct outline as if precisely cut along the edges

clear and distinct to the senses; easily perceptible

(of something seen or heard) clearly defined

distinctly or sharply outlined

showing clearly the outline or profile or boundary