清楚的

明确的

清澈的

晴朗的（clear的最高级）

a readily apparent to the mind

s free from confusion or doubt

s affording free passage or view

a allowing light to pass through

s free from contact or proximity or connection

s characterized by freedom from troubling thoughts (especially guilt)

s (of sound or color) free from anything that dulls or dims

s (especially of a title) free from any encumbrance or limitation that presents a question of fact or law

s clear and distinct to the senses; easily perceptible

a accurately stated or described

a free from clouds or mist or haze

s free of restrictions or qualifications

s free from flaw or blemish or impurity

s clear of charges or deductions

s easily deciphered

s freed from any question of guilt

s characterized by ease and quickness in perceiving