In uncountable|lang=en terms the difference between unclarity and ambiguity
is that
unclarity is (uncountable) the state or quality of what is unclear or confusingly formulated; ambiguousness; imprecision while
ambiguity is (uncountable) the state of being ambiguous.
In countable|lang=en terms the difference between unclarity and ambiguity
is that
unclarity is (countable) a statement that is unclear while
ambiguity is (countable) something, particulary words and sentences, that is open to more than one interpretation, explanation or meaning, if that meaning etc cannot be determined from its context.
As nouns the difference between unclarity and ambiguity
is that
unclarity is (uncountable) the state or quality of what is unclear or confusingly formulated; ambiguousness; imprecision while
ambiguity is (countable) something, particulary words and sentences, that is open to more than one interpretation, explanation or meaning, if that meaning etc cannot be determined from its context.