Verbseoul.
ㅂ irregular (adj)
눈꼴사납다nunkkolsanapdaugly, unsightly, hard-featured

To say ugly, unsightly, hard-featured politely in the present tense, use 눈꼴사나워요 (noon-ggohl-sah-nah-wuh-yoh). Below is the full conjugation of 눈꼴사납다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
눈꼴사나워
noon-ggohl-sah-nah-wuh
눈꼴사나워요
noon-ggohl-sah-nah-wuh-yoh
눈꼴사납습니다
noon-ggohl-sah-nahp-sseum-nee-dah
Past
눈꼴사나웠어
noon-ggohl-sah-nah-wuh-ssuh
눈꼴사나웠어요
noon-ggohl-sah-nah-wuh-ssuh-yoh
눈꼴사나웠습니다
noon-ggohl-sah-nah-wuh-sseum-nee-dah
Future
눈꼴사나울 거야
noon-ggohl-sah-nah-ool- -guh-yah
눈꼴사나울 거예요
noon-ggohl-sah-nah-ool- -guh-yae-yoh
눈꼴사나울 겁니다
noon-ggohl-sah-nah-ool- -guhm-nee-dah

Other useful forms

Command Polite (세요)
눈꼴사나우세요
noon-ggohl-sah-nah-oo-sae-yoh
Suggestion / Let's Polite (요)
눈꼴사나워요
noon-ggohl-sah-nah-wuh-yoh
Question Polite (요)
눈꼴사나워요?
noon-ggohl-sah-nah-wuh-yoh-?
Connective “and” — (고)
눈꼴사납고
noon-ggohl-sah-nahp-goh
Conditional “if” — (면)
눈꼴사나우면
noon-ggohl-sah-nah-oo-myuhn
Noun form — (기)
눈꼴사나움
noon-ggohl-sah-nah-oom