Lapse: a brief or temporary failure of concentration, memory, or judgement. Interregnum: a period when normal government is suspended, especially between successive reigns or regimes. Stasis: a period or state of inactivity or equilibrium. Anachronism: a thing belonging or appropriate to a period other than that in which it exists, especially a thing that is conspicuously old-fashioned. Intermission: a pause or break.