the GNU version of the Collaborative International Dictionary of English
adj. Having no power to resist; making no opposition.
adj. Incapable of being resisted; irresistible.
The Century Dictionary and Cyclopedia
Incapable of being resisted, opposed, or withstood; irresistible.
Powerless to resist; helpless; unresisting.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. offering no resistance
adj. impossible to resist; overpowering
Word Usage
"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."