not obtrusive or undesirably noticeable; "a quiet, unobtrusive life of self-denial
If you describe something or someone as unobtrusive, you mean that they are not easily noticed or do not draw attention to themselves. The coffee-table is glass, to be as unobtrusive as possible conspicuous + unobtrusively un·ob·tru·sive·ly They slipped away unobtrusively. not easily noticed