Mr. Tulliver felt very much as if the air had been cleared of obtrusive flies now the women were out of the room.
Playful discussions—sometimes serious ones—were going forward, in which both Stephen and Maggie revealed themselves, to the admiration of the gentle, unobtrusive Lucy; and it more than once crossed her mind what a charming quartet they should have through life when Maggie married Philip.
There are no more uses of "unobtrusive" in the book.
Show samples from other sources
The web site has a lot of ads, but they are unobtrusively placed on the far right of the screen.