intermittent
in.ter.mit.tent \-*nt\ aj [L intermittent-, intermittens, prp. of
intermittere] : coming and going at intervals mean occurring or appearing
in interrupted sequence. INTERMITTENT stresses breaks in continuity;
RECURRENT stresses repetition; PERIODIC implies recurrence at essentially
regular intervals; ALTERNATE may apply to two contrasting things appearing
repeatedly one after the other {alternate hope and despair} or to every
second member of a series {meet on alternate Tuesdays} - in.ter.mit.tent.ly
av SYN syn INTERMITTENT, RECURRENT, PERIODIC, ALTERNATE