Ohnosecond

//ˈəʊ(ˈ)nəʊˌsɛkənd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The fraction of time between making a mistake and realizing it. humorous

    "In the ohnosecond (one minuscule fraction of a nanosecond, the time it takes to realize you just made a BIG mistake) that followed, I realized my log of the conversation was lost."

Example

More examples

"In the ohnosecond (one minuscule fraction of a nanosecond, the time it takes to realize you just made a BIG mistake) that followed, I realized my log of the conversation was lost."

Etymology

From oh no + second, in imitation of terms like nanosecond and attosecond.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.