Modernness
Part of speech: noun
Definition: The property of being modern.
Contemporaneity
Part of speech: noun
Definition: The state or characteristic of being contemporaneous.
Modernness as a noun is the property of being modern. while Contemporaneity as a noun is the state or characteristic of being contemporaneous.
Part of speech: noun
Definition: The property of being modern.
Part of speech: noun
Definition: The state or characteristic of being contemporaneous.
We hope you now know whether to use Modernness or Contemporaneity in your sentence.