Definition of "resistless" [re•sist•less]

• Impossible to resist; irresistible: resistless force; resistless love. (adjective)
• Powerless to resist; unresisting. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "His powerful left arm, driving the double-razor-edged dirk in short, resistless arcs, managed to keep the snaky tendrils from coiling about his right arm, which was wielding the heavy, trenchant sword."
• "Little wonder, therefore, that his amazing eloquence was described as a resistless torrent."
• "Hum, thou art damnable handsome to Night, Charles -- Ay, thou wilt do't; I see a kind of resistless Leudness about thee, a most triumphant Impudence, loose and wanton."