When you just have a normal day, getting up, going to work and coming home, this is an example of a day that would be described as ordinary.
An ordinary delay at the bridge tolls.
Nothing out of the ordinary occurred.
- unusual; extraordinary
Idioms and Phrasal Verbs
Origin of ordinary
- Middle English ordinarie from Old French from Latin ōrdinārius from ōrdō ōrdin- order ar- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition