sprontaneous
adjective. particularly fancy in manner, typically used in the context of spring and sometimes confused with autumn roasts. if used in the context of beer, its usually a sour ale with Mirepoix, Woodear Mushroom, Sage, Rosemary, Thyme, Black Peppercorn, and Yellow Miso
Its 57 degrees outside in April, let's sprontaneously go get an Autumnal Roast.