ad hoc Synonyms

makeshift temporary unplanned spontaneous provisional one-off improvised special-purpose situational pro tem corresponding to the case not planned in advance constructed for a particular need improv single-use unpremeditated unprepared by ear ad hocly one-time specialized unscripted tossed off tossed out thought out loud taking for ride specifically for this extemporised thrown-together for this purpose cobbled together for the specific occasion in duration expressly arranged in process case-by-case jury-rigged interim improviso impromptu immediate extempore extemporary extemporal ephemera dedicated casual awhile autoschediastic arbitrary