inconspicuous (adj.)
- blear
- bleary
- blurred
- blurry
- confused
- dark
- dim
- discreet
- faint
- feeble
- filmy
- foggy
- fuzzy
- hazy
- ill-defined
- indefinite
- indistinct
- indistinguishable
- insignificant
- misty
- modest
- obscure
- pale
- shadowy
- unassuming
- uncertain
- unclear
- undefined
- undistinguished
- unemphatic
- unnoticeable
- unnoticed
- unobtrusive
- unostentatious
- unrecognizable
- vague
- weak