i Register
In some senses, decorous is marked as obsolete. Watch for register when choosing this word.
adj
Marked by behaviour, manners, etc., regarded as proper, tasteful, and in accordance with accepted standards; becoming, seemly.
The narrovv path of truth and virtue inclines neither to the right nor left—it is a ſtraightforvvard buſineſs, and they vvho are earneſtly purſuing their road, may bound over many decorous prejudices, vvithout leaving modeſty behind.
[S]ome grumbling voice, / Which now and then will make a slight inroad / Upon decorous silence, […]
Appropriate, suitable.
[B]oth the truth vvhich the Prophecy aims at is faithfully conveyed, and that decorous embelliſhment in the external Cortex of the Prophecy punctually obſerved.
And it is no vvonder this falling Star or Comet ſhould be looked upon as ſo miſchievous to Rivers and VVaters, vvhen Natural Hiſtory ſpeaks of falling Comets that have drunk up vvhole Rivers; ſo decorous is the repreſentation.