colloquial
adj.
"spoken," 1751, from colloquy "a conversation" + -al(1). Related: Colloquially.
〔蒋〕[col-共同，loqu说，-ial形容词后缀，…的] 口语的，会话的，白话的，用通俗口语的
〔李〕[col-(com-)=together一起；loqu=to speak说；-i-;-al a.=of……的→“of speaking together 一起说话的”→] a. ① belonging to conversational style会话体的，口语的