thickness vs consistency

thickness and consistency both are nouns.

Word	Noun	Adjective	Verb	Adverb
thickness	Yes	No	No	No
consistency	Yes	No	No	No

As nouns, consistency is a hypernym of thickness; that is, consistency is a word with a broader meaning than thickness:

Other hypernyms of thickness include body, consistence, substance.

thickness (noun)	consistency (noun)
the dimension through an object as opposed to its length or width	the property of holding together and retaining its shape
resistance to flow	(logic) an attribute of a logical system that is so constituted that none of the propositions deducible from the axioms contradict one another
used of a line or mark	a harmonious uniformity or agreement among things or parts
indistinct articulation	logical coherence and accordance with the facts