hard to see
- obscuredMade hard to perceive
- dimLow in light
- faintWeak and indistinct
- blurryIndistinct, lacking definition
- hazyUnclear, indistinct
murky · foggy · shadowy · indistinct · vague · unclear · squinting · misty · smudged · grainy · fuzzy · veiled · elusive · camouflaged · hidden · subtle · muted · ghostly
visibility/perceptibility
hard to seevisible
Able to be seen
in plain sight · obvious · clearly visible · conspicuous · clear
comprehensibility
hard to seeeasy to understand
obvious · clear · self-evident · plain · straightforward