aperiodic /ā-pē-ri-odˈik/

1. Not periodic
2. Highly damped and coming to rest without oscillation (physics)

aperiodicity /-ə-disˈi-ti/ noun

• lower
• lower-bracket
• lower-case
• lower chamber
• lower-class
• lower criticism
• lower deck
• lower-deck
• lower decks
• lowered
• lower grade
• lower grades
• lower house
• lower houses
• lowerier
• loweriest
• lowering
• loweringly
• lowerings
• lower mordent
• lowermost
• lower one's sights
• Lower Palaeozoic
• lower regions
• lowers