無的確bô-tik-khak副詞副詞說不定、不一定。我今仔日無的確會加班。Guá kin-á-jı̍t bô-tik-khak ē ka-pan.我今天說不定會加班。類義無一定bô-it-tīng無定bô-tiānn反義一定it-tīng必然pit-jiân/pit-liân的確tik-khak