"incidental interest" is a correct and usable phrase in written English.
It means interest that is secondary or unimportant, such as an interest in a hobby or activity that does not take up a lot of time or resources. For example: Although baseball was his primary passion, he had some incidental interest in cooking.
Still there is something fundamentally unconvincing about this good cheer, as there is about the whole book, even though it is full of incidental interest.
The campaign was proud of its ability to raise money in small increments, but it spent much of the money it raised on fund-raising expenses, which made the whole enterprise seem suspiciously like a self-perpetuating money machine — perhaps one with an only incidental interest in putting Carson into the White House.
It is these epistemological concerns, and not my incidental interest in linguistics, that motivate my speculations" (1990b, 3).
But those are just incidental points of interest.
It will thus aid in the identification of appropriate genes to target for screening [ 42, 43], as well as, help improve the interpretation of incidental findings of interest to the patient.
Interest payments incidental to the final settlement made the total price $27,267,622.
The film seems to invert conventional notions of foreground and background, as if the feelings and choices of individuals were incidental and the real interest lay in their changing cultural milieu.
But this infamous 'ride' was incidental to Pushkin's interest in the battle of Poltava (1709), in which Mazeppa fatally sided with Charles XII of Sweden against his own Tsar, Peter, in the cause of Ukrainian freedom.
Read through the lens of this core narrative, all of the racist rhetoric and activity from special interests is incidental.
Consequently, he argues, New Jersey's "vital government interests" in prohibiting discrimination outweigh any incidental burden on the expressive interests of a major civic organization that is chartered by Congress and stitched tightly to government at all levels.
It just flips the usual run of things quite naturally, so that the men in the show are the romantic incidentals and love interests, viewed through the eyes of women in a matriarchal bubble.
