STUBBORN
1) They´re both stubborn.
2) He was very stubborn, he didn´t want to change his opinion or attitude.

BRAT
1) She's behaving like a spoiled/spoilt brat.
2) I think (that) your cousin is a spoiled/spoilt little brat.

POKE
1) You'll poke someone in the eye with that umbrella if you're not careful!
2) She poked him in the ribs with her elbow.

STUNNING
1) She looked really stunning in the new dress.
2) My dear, you look absolutely stunning tonight.