Verbseoul.
descriptive
재미없다jaemieopdauninteresting, dull

To say uninteresting, dull politely in the present tense, use 재미없어요 (chae-mee-uhp-ssuh-yoh). Below is the full conjugation of 재미없다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
재미없어
chae-mee-uhp-ssuh
재미없어요
chae-mee-uhp-ssuh-yoh
재미없습니다
chae-mee-uhp-seum-nee-dah
Past
재미없었어
chae-mee-uhp-ssuh-ssuh
재미없었어요
chae-mee-uhp-ssuh-ssuh-yoh
재미없었습니다
chae-mee-uhp-ssuh-sseum-nee-dah
Future
재미없을 거야
chae-mee-uhp-sseul- -guh-yah
재미없을 거예요
chae-mee-uhp-sseul- -guh-yae-yoh
재미없을 겁니다
chae-mee-uhp-sseul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
재미없으세요
chae-mee-uhp-sseu-sae-yoh
Suggestion / Let's Polite (요)
재미없어요
chae-mee-uhp-ssuh-yoh
Question Polite (요)
재미없어요?
chae-mee-uhp-ssuh-yoh-?
Connective “and” — (고)
재미없고
chae-mee-uhp-goh
Conditional “if” — (면)
재미없으면
chae-mee-uhp-sseu-myuhn
Noun form — (기)
재미없음
chae-mee-uhp-sseum