casual Synonyms

occasional accidental incidental superficial informal perfunctory insouciant daily chance cursory effortless everyday unexpected passing nonchalant fortuitous random unforeseen contingent off-the-cuff offhanded unrehearsed extramarital unwilled adventitial easygoing semiformal laid-back shoestring aperiodic clochard offstage nonjudgmental part-timer unstructured loose-fitting recreational localised blither out of doors one-dimensional ad hoc throwaway unforeseeable undreamt undreamed undiscreet undirected undeterminable unconsidered