1.
A ~ task or job requires great effort and determination.
Mike found a ~ job as a computer programmer...
I’m ready to do all those things which are more ~.
= demanding
ADJ
2.
If you do something in a ~ way, you seem to be inviting people to argue with you or compete against you in some way.
Mona gave him a ~ look.
= defiant
ADJ: usu ADJ n