tough; resilient; hardy
Describes people, materials, or situations that are physically or mentally strong, durable, or difficult. Used as a na-adjective.
He is much tougher than he looks.
This material is very tough and won't tear easily.
He's a tough person who doesn't break down even in difficult situations.
This negotiation looks like it's going to be a really tough one.
She has toughly survived through adversity.
He has a personality that's tough against stress.