ADJ-GRADED
不顯著的；不容易被注意到的；不引人注目的
If you describe something or someone as unobtrusive, you mean that they are not easily noticed or do not draw attention to themselves.
例句
The coffee-table is glass, to be as unobtrusive as possible...
那張咖啡桌是玻璃的，為的是盡量不惹眼。
He managed the factory with unobtrusive efficiency.
他經營那家工廠很有效率卻不事張揚。