This study examined the discourse-pragmatic functions of ‘-(u)nikka’, which functions as a final sentential ending through omission and inversion in spoken corpus. The functions of ‘-(u)nikka’ which performs the final sentential function through omission can be used in diverse ways as a ‘response with a reason presupposing the listener’s perception’,‘to confirm a reason’, ‘suggest understanding’, ‘suggest empathy’, ‘request consent’, ‘as an inducement for the listener’s response in the speaker’s conversation ’, and ‘indirectly revealing the speaker’s thoughts’. The main clauses of’‘-(u)nikka’ through inversion’ is used with the aim to clearly relate what the speaker wants to say about the utterance of the preceding speaker in the trailing clause located at the end of all utterances; with the aim to efficiently structure a conversation by providing the listener’s immediate thoughts on the subject or theme suggested by the speaker; and with the aim to explicitly bring up a new subject or theme. The ‘-(u)nikka, which performs the final sentential function through inversion is mainly used to explain the reason or situation. (Yonsei University)