inartificial

The expedient that suggested itself was precipitate and inartificial.

The methods of proofs are the artificial proofs and the inartificial proofs.

It only needs, that a just man should walk in our streets, to make it appear how pitiful and inartificial a contrivance is our legislation.

By "inartificial", Evelyn meant unplanned and makeshift, the result of organic growth and unregulated urban sprawl.

His manners were, at all times, harmless and inartificial, and his habits those of a lover of contemplation and seclusion.

Comparing London to the Baroque magnificence of Paris, John Evelyn called it a "wooden, northern, and inartificial congestion of Houses," and expressed alarm about the fire hazard posed by the wood and about the congestion.

The drama (if drama it must be called) is, however, so inartificial that I doubt whether, if recited on the Thespian waggon to an Athenian village at the Dionysiaca, it would have obtained the prize of the goat.