The phrase "unsuitable to use" is a correct and usable phrase in written English.
You can use it to describe something that is not suitable or appropriate for a given purpose. For example: "The software is completely unsuitable to use for this project, so we will have to look for an alternative."
Polymers are commonly used in industry for packaging applications and as protective coatings but are sometimes unsuitable to use due to their low surface energies.
Presence of blood and debris and the risk of gas embolism render CO2 unsuitable to use in operative hysteroscopy.
When the flag becomes unsuitable to use, it is customarily burned in private.
We think it might be unsuitable to use postoperative monocyte count to predict prognosis for too many confounding factors.
Whereas an extrinsic reward such as money would be unsuitable to use in cognitive training, performance feedback can easily be implemented in a training procedure.
Change the baby's diaper in your car, if you discover all the other methods as being unsuitable to use.
This strongly suggests that the arithmetic mean is an unsuitable measure to use.
Also, if a reference A′ shares some of the same admixture history as C or is simply very closely related to C, the pre-test will typically identify long-range correlated LD and deem A′ an unsuitable reference to use for testing admixture.
However, the intrinsic properties of fibrin gel such as poor mechanical strength and fast degradation make it unsuitable to be used independently.
Although serum IL-10 was significantly elevated in patients with SD it had a poor discriminatory value in identifying those with SD and non SD and therefore, is unsuitable to be used as a robust biomarker in this cohort.
Morphine has several limitations, notably delayed onset and prolonged duration of action, on account of which it is unsuitable to be used as a sedative in neonatal intubation [ 6, 11, 36].
