Verbseoul.
descriptive
멋있다meotitdawonderful, nice, cool

To say wonderful, nice, cool politely in the present tense, use 멋있어요 (muh-shee-ssuh-yoh). Below is the full conjugation of 멋있다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
멋있어
muh-shee-ssuh
멋있어요
muh-shee-ssuh-yoh
멋있습니다
muh-shee-sseum-nee-dah
Past
멋있었어
muh-shee-ssuh-ssuh
멋있었어요
muh-shee-ssuh-ssuh-yoh
멋있었습니다
muh-shee-ssuh-sseum-nee-dah
Future
멋있을 거야
muh-shee-sseul- -guh-yah
멋있을 거예요
muh-shee-sseul- -guh-yae-yoh
멋있을 겁니다
muh-shee-sseul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
멋있으세요
muh-shee-sseu-sae-yoh
Suggestion / Let's Polite (요)
멋있어요
muh-shee-ssuh-yoh
Question Polite (요)
멋있어요?
muh-shee-ssuh-yoh-?
Connective “and” — (고)
멋있고
muh-sheet-goh
Conditional “if” — (면)
멋있으면
muh-shee-sseu-myuhn
Noun form — (기)
멋있음
muh-shee-sseum