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free from error or defect; consistent with a standard, rule, or model; precise; exact.
careful or meticulous:
an accurate typist.
Contemporary Examples

There is debate among economists and social scientists about which ratio is the most accurate.
Fact-Checking the Sunday Shows, April 27 PunditFact.com April 26, 2014

The finding that one in five women are sexually assaulted in college may not be accurate.
Is the Campus Rape Crisis Overblown? Eleanor Clift July 9, 2014

The script gives an accurate portrayal of who he was at this time.
Dane Dehaan Is Hollywood’s Homicidal Darling Anna Klassen October 19, 2013

They kept after them for weeks, determined to get an accurate read.
I Just Had a Baby, I’ll Call You Back Katty Kay, Claire Shipman June 1, 2009

They also are pushing back on the numbers that Obama and the Democrats are using, saying 77 cents on the dollar is not accurate.
What Equal Pay Day? McConnell Slams Paycheck Fairness Act Eleanor Clift April 8, 2014

Historical Examples

In the opinion of Mr. Harrison, this ‘is the age of accurate translation.
The Quarterly Review, Volume 162, No. 324, April, 1886 Various

But a sober, measured statement you can conclude is accurate.
The Forest Stewart Edward White

He seemed to carry a map of the township in the bottom of his feet, a most minute and accurate survey.
A Year in the Fields John Burroughs

Hast thou heard the saying of Gwiawn, The observer of accurate sight?
Y Gododin Aneurin

Mr Vanslyperken did not much admire the exterior of the building, but it was too dark to enable him to take an accurate survey.
Snarley-yow Frederick Marryat

adjective
faithfully representing or describing the truth
showing a negligible or permissible deviation from a standard: an accurate ruler
without error; precise; meticulous
(maths)

(to n significant digits) representing the first n digits of the given number starting with the first nonzero digit, but approximating to the nearest digit in the final position: since π = 3.14159…, the approximation 3.1416 is accurate to 5 significant digits.
(to n decimal places) giving the first n digits after the decimal point without further approximation: π = 3.1415 is in this sense accurate to 4 decimal places

adj.

1610s, “done with care,” from Latin accuratus “prepared with care, exact, elaborate,” past participle of accurare “take care of,” from ad- “to” (see ad-) + curare “take care of” (see cure). The notion of doing something carefully led to that of being exact (1650s). Related: Accurately; accurateness.