"inaccurate estimate" is correct and usable in written English.
You can use it when you are talking about an estimation (or calculation) of something that is not reliable or correct. For example, "The company's estimated return on investment was an inaccurate estimate and the actual return was much lower."
Papandreou's government announced that the previous administration had published a wildly inaccurate estimate of that year's likely deficit.
SCCP often involves various uncertainties such as emergency customer orders, inaccurate estimate of processing time or unpredictable machine breakdown.
We try to amend the incorrect and/or inaccurate estimate of motion with higher precision by using Kalman filter.
In the presence of competent internal jugular venous valves, measurement of inflow pressure in the superior vena cava may be an inaccurate estimate of actual cerebral perfusion pressure.
They forget his main thrust, about "the gravity of the calamity our countrymen will face in these coming days".Then, after the typhoon had struck, Mr Aquino gave a low and inaccurate estimate of the death toll.
The extent of data uncertainty of surface-wave measurements may have significant consequences on 1D seismic response analysis and it may lead to inaccurate estimate of design ground motion.
Consider the inaccurate estimates of federal budget surpluses and deficits over the last five years.
These inaccurate estimates meant that warning of the tsunami hazard was delayed by hours.
As a result, initial financial aid awards may be based on inaccurate estimates provided by a family.
As such, current models may result in inaccurate estimates of optimal earthwork costs, leading to poor choices in road design.
The method copes with inaccurate estimates of variant noise patterns in the image, showing its robustness in realistic cases.
