conventional

Pertaining to a convention, as in following generally accepted principles, methods and behaviour.

A “moving platform” scheme[…]is more technologically ambitious than maglev trains even though it relies on conventional rails. Local trains would use side-by-side rails to roll alongside intercity trains and allow passengers to switch trains by stepping through docking bays.

Ordinary, commonplace.

They wear conventional clothes, eat conventional food, and keep conventional hours.

“You’re not conventional?” Isabel gravely asked. “I like the way you utter that word! No, I’m not conventional: I’m convention itself. You don’t understand that?”

Banal, trite, hackneyed, unoriginal or clichéd.

Pertaining to a weapon which is not a weapon of mass destruction.

Making use of synthetic fertilizers and pesticides.

A conventional gilt-edged security, a kind of bond paying the holder a fixed cash payment (or coupon) every six months until maturity, at which point the holder receives the final payment and the return of the principal.