unobtrusive

UK: ˌʌn.əbˈtruː.sɪv | US: ˌʌn.əbˈtruː.sɪv

Definition
  1. adj. not noticeable or conspicuous; discreet

  2. adj. not forcing attention on others; modest

Structure
un <not>obtrusive <noticeable>
Etymology

The word "unobtrusive" combines the prefix "un-" (Old English "un-," meaning "not") with "obtrusive," derived from Latin "obtrudere" ("ob-" [against] + "trudere" [to thrust]). "Obtrusive" originally meant "thrusting oneself forward," evolving to imply being overly noticeable. Adding "un-" reverses the meaning, creating a term for something that avoids drawing attention—a logical progression from physical intrusion to subtle presence.

Examples
  1. The design is sleek and unobtrusive, blending seamlessly into the room.

  2. She preferred unobtrusive jewelry for formal events.

  3. The software runs in an unobtrusive background mode.

  4. His criticism was subtle and unobtrusive, almost polite.

  5. The waiter’s service was efficient yet unobtrusive.