He remained reserved, retiring, inconspicuous, and puzzling to our understanding.
He went to a small and inconspicuous closet and armed himself.
There can be but one reason for this; the bird is inconspicuous.
Now we know they existed, but they were small and inconspicuous.
Flowers small, 4-parted, inconspicuous, in clusters in the axils of the leaves.
Apart from these ...