clear
Attic
Ciceronian
bright
chaste
classic
clean
clean-cut
clear as crystal
clear as day
clear-cut
coherent
connected
consistent
crisp
crystal
crystal-clear
crystalline
defined
definite
diaphane
diaphanous
direct
distinct
easy
elegant
explicit
express
filmy
finished
gauzy
gossamer
gossamery
graceful
gracile
light-pervious
loud and clear
lucid
luminous
natural
neat
nonopaque
peekaboo
pellucid
perspicuous
plain
azure
childlike
cloudless
colourless
dewy
glassy
icy
iridescent
lustrous
milky
pearly
restful
tranquil
translucent
untroubled
viscous