From Wiktionary, the free dictionary
жу́ткий (žútkij) + -о (-o)
жу́тко • (žútko)
- frighteningly
- (colloquial) terribly, extremely
жу́тко • (žútko)
- one is terrified
- Мне жу́тко. ― Mne žútko. ― I am terrified.
- it is frightening
- Но́чью бы́ло жу́тко. ― Nóčʹju býlo žútko. ― It was frightening at night.
жу́тко • (žútko)
- short neuter singular of жу́ткий (žútkij)