observable (adj.)
- apparent
- appreciable
- clear
- detectable
- discernible
- disclosed
- distinct
- evident
- explicit
- exposed
- express
- indisputable
- indubitable
- manifest
- memorable
- naked
- notable
- noticeable
- obvious
- open
- open-and-shut
- palpable
- patent
- perceivable
- perceptible
- perspicuous
- plain
- recognizable
- red-letter
- revealed
- seeable
- self-evident
- self-explanatory
- sensible
- tangible
- transparent
- unclouded
- unconcealed
- undisguised
- unmistakable
- viewable
- visible
- visual
