What is a word opposite of era?

There isn't a single word that is the direct opposite of "era." "Era" refers to a distinct period of time, often marked by significant events or changes. To find an opposite, we need to consider what aspect of "era" you're looking to contrast:

* If you're thinking about the duration of an era, then "moment" or "instant" might be suitable opposites. These words represent a very brief point in time.

* If you're thinking about the significance of an era, then "insignificance" or "unimportance" could be opposites. These words suggest a lack of impact or lasting effect.

* If you're thinking about the characteristics of an era, then you might use words like "stasis," "unchanging," or "stagnation." These terms suggest a lack of change or development.

Ultimately, the best opposite for "era" depends on the specific context in which you're using it.