improper

fortunate, opportune, seasonable, timely

applicable, apposite, apropos, apt, germane, material, pat, pointed, relative, relevant

compatible, congenial, harmonious

allowed, authorized, permitted

approved, endorsed (also indorsed), kosher, licensed, sanctioned

abetted, encouraged, promoted, supported

acceptable, adequate, all right, decent, fine, OK (or okay), passable, respectable, satisfactory, tolerable

commendable, creditable, exemplary

blameless, irreproachable

balanced, companionate, congruous, consonant, harmonious