Quote Originally Posted by gRomoZeka View Post
Sometimes there can be a subtle difference. It's slightly more pronounced in adjectives "обычный-обыкновенный":
обычный - usual, common -> everyday, widespread, familiar
обыкновенный - usual, common -> ordinary, typical for this kind of things
о
Please could you give a couple of examples to illustrate this. Are you saying that there are occasions when replacing обычно by obyknovenno is impossible, even in more formal styles?