"reluctance toward" is correct and usable in written English.
You can use it to express someone's hesitation about taking certain action. For example: "John's reluctance toward giving interviews indicated his desire for privacy."
Because of Gonzalez's reluctance toward various proposals, the Yankees resumed their discussions with the Chicago Cubs about acquiring Sammy Sosa and made some progress.
Child-Friendly Opera Scott Ailing, a tenor, is co-author and co-director of "What's Opera, Doc?" a program designed to quell a child's reluctance toward opera.
Underlying his effort I sense a patriotic emotion: a dread that the United States is about to change from its traditional position of reluctance toward war to a pre-emptive, or even entrepreneurial, adoption of war as a national tool.
The rest of the petroleum industry has been slowly shedding its reluctance toward biofuels, under pressure from government mandates that require increasing use of ethanol in the country's energy supplies over the next decades.
A separate study in The Lancet by Dutch researchers concluded that the demand for doctor-assisted death had not risen among patients and doctors since 1995, with both showing more reluctance toward the practice.
As one nutritionist explained to Nina Teicholz, with delicate understatement: "Scientists believe that saturated fat is bad for you, and there is a good deal of reluctance toward accepting evidence to the contrary".
Nancy Kanwisher, a professor of cognitive neuroscience at M.I.T., said she saw a growing reluctance to edge toward war.
There are some things about Jeantel that are not hard to believe: that she remains profoundly affected by her friend's violent death; that she, as much as anyone in the courtroom, was aware of the presumptions that accompany imperfect grammar, race, and obesity; that her initial reluctance and antagonism toward the entire undertaking were products of this awareness.
Here's her Your Dot post describing the project: A recent report by the EDF highlights the nation's current reluctance to invest capital toward efficiency projects.
And so, with some reluctance, we are bustled toward a climax, in which the guns that Milan secreted in a drawer are brought into service, while Manesquier enters the hospital for an operation.
To the ethicist Gilbert Meilaender, for instance, the reluctance that many feel toward donating organs, even after death, is not selfishness or superstition but a sign that our sense of the body as something whole, something human, something sacred, has not yet withered.
