commentatory

Adjective

1. of or relating to a commentary
   • It is a thoughtless scattering of acceptable words and is as unlike the review conceived as a portrait as is the hostile kind of commentatory review which I have been discussing. - 1921, Robert Lynd, The Art of Letters:
   • The latter has a commentatory letter to this end, from Gen. Jackson, dated the 19th of March, which denotes an interest on this topic that argues favorably of his views of moral things. " - 1851, Henry Rowe Schoolcraft,...