- The definition of erroneous is something that is incorrect or in error.
An example of an erroneous statement is that the earth is flat.
Origin: Middle English ; from Classical Latin erroneus, wandering about ; from errare: see err
- erroneously adverb
Used by arrangement with John Wiley & Sons, Inc.
Origin: Middle English, from Latin errōneus, from errō, errōn-, a vagabond, from errāre, to err, wander; see ers- in Indo-European roots.
- er·roˈne·ous·ly adverb
- er·roˈne·ous·ness noun