Huolellisuudella
Huolellisuudella is a Finnish adverb derived from the noun huolellisuus, which means carefulness or diligence. The adverbial suffix –lla turns the noun into an adverb indicating the manner in which an action is performed: with care or carefully. In spoken and written Finnish the expression is used to emphasize meticulousness or thoroughness.
The word appears frequently in contexts that involve skillful or precise work, such as crafts, cooking, repair
In compound expressions in Finnish, huolellisuudella often appears with other adverbs or nouns, for instance “huolellisuudella
While the adverb by itself expresses carefulness, it can contrast with the adverb ”hätäilyllä” (with haste).