The phrase "alternative to customary" is correct and usable in written English.
It can be used when discussing options or choices that differ from what is traditionally accepted or practiced.
Example: "The new policy offers an alternative to customary practices that have been in place for decades."
Alternatives: "option instead of traditional" or "substitute for conventional".
To those opponents who detect a thick strain of techno-evangelism in Kurzweil's basically optimistic interpretation of the singularity, he reacts with self-parody: there's a tongue-in-cheek photo in The Singularity is Near of the author wearing a sandwich board bearing the book's title, and he insists he was never "searching for an alternative to customary faith".
A digitally captured, designed, and fabricated facial prosthesis is presented as an alternative to customary maxillofacial prosthodontics fabrication techniques, where a facial moulage and patient cooperation may be difficult.
The alternative to that was demonstrated, with customary perfection, by the Onion in a piece entitled "Man finally put in charge of struggling feminist movement".
The clinics, an alternative to the hospital emergency rooms which are the customary source of basic care for uninsured patients, have been undermined by a sea change in health care financing, the experts said.
Football provides alternative to gangs and bullying KHAO LAK, Thailand, 6 March 2006 - In the driving rain, Thamanoon and his team-mates line up for the customary march out onto the pitch and formal handshake with their opponents before the match.
His loyalty to customary ways of designing cities runs deep.
The central principle of non-refoulement belongs to customary law.
The Eat24 deal is still subject to customary closing conditions.
Marriage systems correspond to customary land-tenure patterns of matrilineal or patrilineal cultures.
Social differentiation strongly relates to customary land rights as well as gender, ethnicity and origin.
