transparent vs crystal clear

transparent and crystal clear both are adjectives.

Word	Noun	Adjective	Verb	Adverb
transparent	No	Yes	No	No
crystal clear	No	Yes	No	No

As adjectives, transparent and crystal clear are synonyms defined as:

transparent and crystal clear: transmitting light; able to be seen through with clarity

Other synonyms of transparent include crystalline, limpid, lucid, pellucid.

transparent (adjective)	crystal clear (adjective)
transmitting light; able to be seen through with clarity	(of language) transparently clear; easily understandable
easily understood or seen through (because of a lack of subtlety)	transmitting light; able to be seen through with clarity
free of deceit
so thin as to transmit light