colloquial colloquial /kəˈloʊkwiːəl/

adjective

1. () Characteristic of informal spoken language or conversation  ( colloquial , conversational )
   characteristic of informal spoken language or conversation
    Wrote her letters in a colloquial style
   wrote her letters in a colloquial style
    The broken syntax and casual enunciation of conversational English
   the broken syntax and casual enunciation of conversational English