なるべく

About

なるべく is an adverb that is used to say that an action is done "as X as possible" or that someone will "do their best to do X".

E.g. なるべくたくさん水みずを飲のむようにしている。 "I'm doing my best to drink a lot of water."

E.g. 今日きょうは息子むすこの誕生日たんじょうびなので、なるべく早はやく帰かえりたいです。 "Today is my son's birthday, so I'd like to go home as soon as possible."

なるべく is not necessarily polite, but is sometimes used in polite scenarios. It may also be used in casual speech. (In more formal scenarios 「可能かのうな限かぎり・できる限かぎり」 should be used instead.)

Compared to the similar construct 「できるだけ」, なるべく sounds less firm, and doesn't necessarily indicate that the speaker will do everything in their power to do "X".

Summary

• 

  なるべく is an adverb that is used to say that an action is done "as X as possible"

• 

  なるべく may be used in casual or polite scenarios, but is not inherently polite

• 

  なるべく sounds less firm than できるだけ, and doesn't necessarily indicate that the speaker will do everything in their power to do "X"