Which of the following words is closest in meaning to “Unobtrusive”?

Unobtrusive means not attracting attention; discreet.

• Correct answer - discreet: it has the same meaning as Unobtrusive.
• unconvincing: not persuasive - wrong, it does not mean the same as Unobtrusive.
• in original form: unchanged - wrong, it does not mean the same as Unobtrusive.
• indispensable: absolutely necessary - wrong, it does not mean the same as Unobtrusive.