Here you go.^^/
1) to be interesting 흥미롭다, 재미있다 heung-mi-rop-da, jae-mi-it-da
That's interesting = 흥미로운데(요) heung-mi-ro-un-de-(yo)
2) to be boring 지루하다 ji-ru-ha-da
That's very boring 지루해(요) ji-ru-hae-(yo)
3) to be cute 귀엽다 gwi-yeop-da
That's cute! 귀여워(요) gwi-yeo-wo-(yo)
4) to be scary 무섭다 mu-seop-da
It's scary 무서워(요) mu-seo-wo-(yo)
5) to be easy 쉽다 swip-da
That's really easy 정말 쉬워(요) jeong-mal swi-wo-(yo)
6) to be hard 어렵다 eo-ryeop-da
That's really hard 정말 어려워(요) jeong-mal eo-ryeo-wo-(yo)
7) to be tired 피곤하다 pi-gon-ha-da
I am tired 피곤해(요) pi-gon-hae-(yo)
8) to be happy 행복하다, 기쁘다 haeng-bok-ha-da, gi-ppeu-da
I am happy 행복해(요) haeng-bok-hae-(yo)
9) to be sad 슬프다 seul-peu-da
I am sad 슬퍼(요) seul-peo-(yo)
and...
10) to be frustrated 짜증나다 jja-jeung-na-da
11) to be worried 걱정하다 geok-jeong-ha-da
12) to be disappointed 실망하다 sil-mang-ha-da
13) to be angry 화나다 hwa-na-da
14) to be disgusting 역겹다 yeok-gyeop-da
15) to be surprised 놀라다 nol-la-da
16) to be surprising 놀랍다 nol-lap-da
17) to be satisfied 만족하다 man-jok-ha-da
18) to be depressed 우울하다 u-ul-ha-da
19) to be excited 흥분되다, 신나다 heung-bun-doe-da,sin-na-da
20) to be relieved 안심하다 an-sim-ha-da
\^o^/