aperiodic

From a- +‎ periodic.

aperiodic (comparative more aperiodic, superlative most aperiodic)

1. That does not recur periodically.

   aperiodic tiling

2. (physics) That does not have a periodic vibration
3. (mathematics, stochastic processes, of a state) for which any return to it may occur at irregular times; not periodic.

   Antonym: periodic

• einstein

• adipocire, apiocerid

Borrowed from French apériodique.

aperiodic m or n (feminine singular aperiodică, masculine plural aperiodici, feminine and neuter plural aperiodice)

1. aperiodic