1. That may be resisted.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• iresistable,
• resistable,
• respisbible,
• respostible,
• respsible,
• eresistable,
• resospible,
• reistible,
• resitible,
• resisitble,
• resistibel,
• Reseptible,
• resissuable,
• reissuiable,
• Resuscitible,
• unresitible,
• unresisitble,
• unresistible,
• redistilld,
• redistille

• requisite,
• resister,
• resistant,
• resistivity,
• Reichstein,
• resistless,
• register,
• resistive,
• registration,
• resistor,
• requisiteness,
• resistance.

The adjective form of "resistible" is "irresistible".