Synonym word of once awhile:

every now and then, every so often, from time to time, infrequently, irregularly, now and again, now and then, occasionally, once and again, once in a while, periodically, sometimes, sporadically


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular