Definition of "repellent" in English

adjective

1. Repulsive, inspiring aversion.

   • The mixture of whey, beetroot juice, and spirulina seems repellent to me.

2. Resistant or impervious to something.

   • All that fabric's supposed to be dust-repellent.

3. (physics, now rare) Tending or able to repel; driving back.

   • These particles exercise a-highly repellent force.

noun

1. A substance or solution used to repel insects, dangerous animals, or other pests.

   • None of the mosquito repellents we've tried work.

2. A substance or treatment for a fabric etc to make it impervious to something.

   • They applied dirt repellent to the sports car.

3. (obsolete, more generally) Someone or something that repels.