Purplish-grey clouds hung low over the castle and a constant fall of chilly rain made the lawns slippery and muddy.
Harry wondered whether constant dis-appearances and reappearances had somehow diminished his substance, or whether this frail build was ideal for anyone wishing to vanish.
McLaggen kept up a constant stream of hints that he would make a better permanent Keeper for the team than Ron, and that now that Harry was seeing him play regularly he would surely come around to this way of thinking too; he was also keen to criticize the other players and provide Harry with detailed training schemes, so that more than once Harry was forced to remind him who was Captain.
There are no more uses of "constant" in the book.
Show samples from other sources
The history of computers is a history of constant technological advancement.