Verbal
Not quite the stupid expression the finical draftsperson believes, verbally means “in words”, and not “in spoken words”. “A verbal agreement”, that odious fellow will continue, “is any kind of agreement, not just one arrived at through ears and tongues alone.”
“An oral agreement is the expression for which you are asking, kind sir.”
“To have your bleeding lights punched out is the experience for which you are asking,” kind sir might be tempted to reply, but — for we cannot condone violence in these pages, however heartily called-for — perhaps he will take succor from the fact that verbally means the same as orally or in writing, and undoubtedly contributes to more picturesque prose.