Unimposing
(adjective)
Not making an impression or striking; not commanding attention or respect; not having a commanding appearance or manner.
Origin:
From un- (not) + imposing (making an impression, striking).
Examples:
- The building was unimpressive, and the visitors didn't take many pictures of it.
- The person was unimpressive, and the interviewer didn't call them back.
- The performance was unimpressive, and the audience didn't give them a standing ovation.
- The product was unimpressive, and the customers didn't buy it.
- The pitch was unimpressive, and the investors didn't fund it.