Verbseoul.
하다 verb (adj)
씁쓸하다sseupsseulhadato be bitter, bitterish

To say to be bitter, bitterish politely in the present tense, use 씁쓸해요 (sseup-sseul-hae-yoh). Below is the full conjugation of 씁쓸하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
씁쓸해
sseup-sseul-hae
씁쓸해요
sseup-sseul-hae-yoh
씁쓸합니다
sseup-sseul-hahm-nee-dah
Past
씁쓸했어
sseup-sseul-hae-ssuh
씁쓸했어요
sseup-sseul-hae-ssuh-yoh
씁쓸했습니다
sseup-sseul-hae-sseum-nee-dah
Future
씁쓸할 거야
sseup-sseul-hahl- -guh-yah
씁쓸할 거예요
sseup-sseul-hahl- -guh-yae-yoh
씁쓸할 겁니다
sseup-sseul-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
씁쓸하세요
sseup-sseul-hah-sae-yoh
Suggestion / Let's Polite (요)
씁쓸해요
sseup-sseul-hae-yoh
Question Polite (요)
씁쓸해요?
sseup-sseul-hae-yoh-?
Connective “and” — (고)
씁쓸하고
sseup-sseul-hah-goh
Conditional “if” — (면)
씁쓸하면
sseup-sseul-hah-myuhn
Noun form — (기)
씁쓸함
sseup-sseul-hahm