observable
adjective
ob·serv·able əb-ˈzər-və-bəl 
1
: noteworthy
2
: capable of being observed : discernible
observability
əb-ˌzər-və-ˈbi-lə-tē
noun observable noun
observably
əb-ˈzər-və-blē
adverb 
Synonyms
- apparent
- seeable
- visible
- visual
See all Synonyms & Antonyms 
Example Sentences
the size of the observable universe scientists often work with phenomena that are not directly observable
Recent Examples on the Web Considering the billions of planets in our galaxy, and the billions of galaxies in the observable universe, few scientists believe that our planet is the only habitat with life. 
Alan Lightman, The Atlantic, 8 Sep. 2022 The number of bytes in the digital universe was 40 times bigger than the number of stars in the observable universe. Clint Boulton, Forbes, 3 Aug. 2022 That means the highest dose given doesn't produce any observable negative outcomes — in other words, the mice don’t look sick — and from there, the doses are given at lower and lower levels. Stephanie Innes, The Arizona Republic, 29 Aug. 2022 The result is software that has been able to balloon in size without (usually) producing observable performance degradation. Brian Pierce, Forbes, 25 Aug. 2022 One of the most common mistakes in software architecture is not architecting the system to be observable and monitorable. Mohit Mittal, Forbes, 12 Aug. 2022 Two buildings near the aircraft were completely destroyed as well, with damage and large burn marks observable elsewhere at the military base. Alan Yuhas, BostonGlobe.com, 10 Aug. 2022 There have been some observable changes to plankton populations as a result of climate change, but nothing close to the massive drop described in the claim, experts say. Chris Mueller, USA TODAY, 29 July 2022 As social media has heightened the scrutiny of extraordinary wealth, some of the very people who created those platforms have sought less observable places to spend it. Evan Osnos, The New Yorker, 18 July 2022 See More
Alan Lightman, The Atlantic, 8 Sep. 2022 The number of bytes in the digital universe was 40 times bigger than the number of stars in the observable universe. Clint Boulton, Forbes, 3 Aug. 2022 That means the highest dose given doesn't produce any observable negative outcomes — in other words, the mice don’t look sick — and from there, the doses are given at lower and lower levels. Stephanie Innes, The Arizona Republic, 29 Aug. 2022 The result is software that has been able to balloon in size without (usually) producing observable performance degradation. Brian Pierce, Forbes, 25 Aug. 2022 One of the most common mistakes in software architecture is not architecting the system to be observable and monitorable. Mohit Mittal, Forbes, 12 Aug. 2022 Two buildings near the aircraft were completely destroyed as well, with damage and large burn marks observable elsewhere at the military base. Alan Yuhas, BostonGlobe.com, 10 Aug. 2022 There have been some observable changes to plankton populations as a result of climate change, but nothing close to the massive drop described in the claim, experts say. Chris Mueller, USA TODAY, 29 July 2022 As social media has heightened the scrutiny of extraordinary wealth, some of the very people who created those platforms have sought less observable places to spend it. Evan Osnos, The New Yorker, 18 July 2022 See More Word History
First Known Use
1589, in the meaning defined at sense 2
Kids Definition
observable
adjective
ob·serv·able əb-ˈzər-və-bəl
: noticeable
Her cat's shape was observable under the blanket.
observability
noun
as in visibility
Synonyms & Similar Words
Relevance
- visibility
- luminosity
- brightness
- apparentness
- definition
- luminousness
- transparency
- effulgence
- brilliance
- resolution
- translucency
- translucence
- clearness
- clarity
- sharpness
- lucency
- limpidity
- limpidness
Antonyms & Near Antonyms
- haziness
- turbidity
- opacity
- milkiness
- murkiness
- opaqueness
- mistiness
- cloudiness
- fogginess
- turbidness