Mammoth Uncensored Word List:
58 words ending with nt, 15 letters long

acknowledgement affranchisement anticipointment antidevelopment antitranspirant chemoattractant counterargument counterclaimant counterirritant countermovement cryoluminescent disafforestment disencumberment disentanglement disenthrallment disentrancement disillusionment disimprisonment distinguishment eclaircissement enchantmentment enfranchisement hyperexcitement immunocompetant immunocompetent immunodeficient immunostimulant interchangement intertanglement irreconcilement micromanagement milliequivalent nonbirefringent noneffervescent noninfringement nonintermittent overachievement overdevelopment overextravagant overnourishment preannouncement readvertisement reapportionment reestablishment semitranslucent semitransparent sonoluminescent spurofthemoment superconvenient supergovernment superinducement transfigurement ultraconvenient underassessment underemployment underinvestment unembarrassment unenlightenment