| Word | Definitions | Synonyms |
|---|---|---|
| unceasingly | (adverb) with unflagging resolve | Synonyms: ceaselessly, continuously, endlessly, incessantly, unendingly |
| unceremoniously | (adverb) in an unceremonious manner | - |
| uncertainly | (adverb) showing lack of certainty | - |
| (adverb) in an unsteady manner | Synonyms: falteringly, unsteadily |