1) At times 2) Erratically 3) Every now and then 4) In fits and starts 5) Infrequently 6) Off and on 7) On again off again 8) On and off 9) Randomly 10) Restlessly Found on https://www.crosswordclues.com/clue/intermittently
intermittent, intermittence, intermittently 1. Stopping and starting at regular intervals. 2. Stopping and starting at irregular intervals (Example: 'Intermittent rain showers'). 3. Alternately containing and empty of water; such as, an intermittent lake. Found on http://www.wordinfo.info/words/index/info/view_unit/1076/9