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Synonyms for Accurate (same or very similar meaning)

WordNet sense 1 ((of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth ; strictly correct):
exact, precise

WordNet sense 2 (free from error; especially conforming to fact or truth):
correct, right

WordNet sense 3 (precisely accurate):

WordNet sense 4 (accurately placed or thrown):

WordNet sense 5 (right; in keeping with the facts):

WordNet sense 6 (marked by fidelity to an original):
close, faithful

From the ODE community, based on WordNetadd/edit