Precise
Part of speech: adjective
Definition: exact, accurate Of experimental results, consistent, clustered close together, agreeing with each other. This does not mean that they cluster near the true, correct, or accurate value.
Example sentence: Economic medicine that was previously meted out by the cupful has recently been dispensed by the barrel. These once unthinkable dosages will almost certainly bring on unwelcome after-effects. Their precise nature is anyone's guess, though one likely consequence is an onslaught of inflation.
Accurate
Part of speech: adjective
Definition: In exact or careful conformity to truth, or to some standard of requirement, the result of care or pains; free from failure, error, or defect; exact; as, an accurate calculator; an accurate measure; accurate expression, knowledge, etc.Precisely fixed; executed with care; careful.
Example sentence: To find a new word that is accurate and different, you have to be alert for it.