Verbseoul.
하다 verb (adj)
청초하다cheongchohadato be unobtrusively but elegantly beautiful

To say to be unobtrusively but elegantly beautiful politely in the present tense, use 청초해요 (chuhng-choh-hae-yoh). Below is the full conjugation of 청초하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
청초해
chuhng-choh-hae
청초해요
chuhng-choh-hae-yoh
청초합니다
chuhng-choh-hahm-nee-dah
Past
청초했어
chuhng-choh-hae-ssuh
청초했어요
chuhng-choh-hae-ssuh-yoh
청초했습니다
chuhng-choh-hae-sseum-nee-dah
Future
청초할 거야
chuhng-choh-hahl- -guh-yah
청초할 거예요
chuhng-choh-hahl- -guh-yae-yoh
청초할 겁니다
chuhng-choh-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
청초하세요
chuhng-choh-hah-sae-yoh
Suggestion / Let's Polite (요)
청초해요
chuhng-choh-hae-yoh
Question Polite (요)
청초해요?
chuhng-choh-hae-yoh-?
Connective “and” — (고)
청초하고
chuhng-choh-hah-goh
Conditional “if” — (면)
청초하면
chuhng-choh-hah-myuhn
Noun form — (기)
청초함
chuhng-choh-hahm