Verbseoul.
descriptive
어이없다eoieopdadumbfounded, ridiculous

To say dumbfounded, ridiculous politely in the present tense, use 어이없어요 (uh-ee-uhp-ssuh-yoh). Below is the full conjugation of 어이없다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
어이없어
uh-ee-uhp-ssuh
어이없어요
uh-ee-uhp-ssuh-yoh
어이없습니다
uh-ee-uhp-seum-nee-dah
Past
어이없었어
uh-ee-uhp-ssuh-ssuh
어이없었어요
uh-ee-uhp-ssuh-ssuh-yoh
어이없었습니다
uh-ee-uhp-ssuh-sseum-nee-dah
Future
어이없을 거야
uh-ee-uhp-sseul- -guh-yah
어이없을 거예요
uh-ee-uhp-sseul- -guh-yae-yoh
어이없을 겁니다
uh-ee-uhp-sseul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
어이없으세요
uh-ee-uhp-sseu-sae-yoh
Suggestion / Let's Polite (요)
어이없어요
uh-ee-uhp-ssuh-yoh
Question Polite (요)
어이없어요?
uh-ee-uhp-ssuh-yoh-?
Connective “and” — (고)
어이없고
uh-ee-uhp-goh
Conditional “if” — (면)
어이없으면
uh-ee-uhp-sseu-myuhn
Noun form — (기)
어이없음
uh-ee-uhp-sseum