extenuatory

Etymology
Compare.

Adjective

 * 1) Tending to extenuate or palliate.
 * 2) * 1831,, notes in The Life of Samuel Johnson (by )
 * Johnson has spread over Savage's character the varnish, or rather the veil, of stately diction and extenuatory phrases, but cannot prevent the observant reader from seeing that Savage was an ungrateful and insolent profligate.