形容词

1. 不可抵抗的;不可抗拒的;不能压制的
If you describe something such as a desire or force as irresistible, you mean that it is so powerful that it makes you act in a certain way, and there is nothing you can do to prevent this.

1. overpoweringly attractive

e.g. irresistible beauty

2. impossible to resist
overpowering

e.g. irresistible (or resistless) impulses
what happens when an irresistible force meets an immovable object?

Synonym: resistless