Definition of observable:
noticeable, striking, discernable, discernible, prominent, detectable, ponderable, crystal clear, marked, see, outstanding, evident, distinguishable, clear-cut, patent, sensible, knowledge, bold, eye-catching, pointed, arresting, pronounced, remarkable, unmistakable, appreciable, signal.
- manifest (part of speech: adjective)
- visible (part of speech: adjective)
Although an extraordinary crowd might be expected to assemble on such a particular occasion, on the same principle of curiosity as could not fail to attract a crowd of spectators in London, yet there was a most remarkable and a striking difference observable between a London and a Pekin populace.- "Travels in China, Containing Descriptions, Observations, and Comparisons, Made and Collected in the Course of a Short Residence at the Imperial Palace of Yuen-Min-Yuen, and on a Subsequent Journey through the Country from Pekin to Canton", John Barrow.
- "A Voyage Towards the South Pole and Round the World, Volume 1", James Cook.
- "Clairvoyance", Charles Webster Leadbeater.