unobtrusive

1. ADJ If you describe something or someone as unobtrusive, you mean that they are not easily noticed or do not draw attention to themselves. 不引人注目的[正式]

The coffee table is glass, to be as unobtrusive as possible. 咖啡茶幾是玻璃制的，盡可能地不引人注目。

2. unobtrusivelyADV 不引人注目地

They slipped away unobtrusively. 他們神不知鬼不覺(jué)地霤走了。