"modest looking" is correct and usable in written English.
It is used to describe an object or person that is not flashy or ostentatious in appearance. For example, "Her modest looking apartment was surprisingly spacious and comfortable."
QUESTION FROM OSCARALBEE : Ooh, modest looking bouquet…part of the austerity theme?
QUESTION FROM OSCARALBEE : modest looking tiara, no? LIZADONNELLY: Isn't it required to wear a tiara?
Queen Street is a modest looking two-lane boulevard that runs east-west through the heart of downtown.
Another small, modest looking restaurant called the Eddy sits right around the corner, on East Sixth Street's disappearing row of interchangeable curry spots.
The surprisingly modest looking flat, which currently serves as administrative offices for the Handel House Museum, will be cleared out and in its place a haul of Hendrix memorabilia will be installed as part of the 'Hendrix in Britain' exhibition.
With his newspaper and coffee, Nick Bari, who recently took over Benito One, a modest looking but highly rated restaurant on Mulberry, also says there is no concealing the changes.
Interestingly, even without explicit "Muslim-friendly" branding, it's a doddle to shop for "modest" looks on the high street these days.
This modest look never deviated from its dark blue palette.
It began with her childhood, when her mother was unrelentingly cruel about her modest looks.
I first visited this plain little cafe for lunch and was underwhelmed, both by the food and the modest looks.
In affluent urban communities, adolescents have already begun to clean up their acts, abandoning their navel-baring tops and hip-rider jeans for a tidier, more modest look.
