全く～ない

About

まったく (全まったく in kanji) is an adverb that means "really; entirely". When まったく is paired with a negative verb/adjective to form the まったく～ない pattern, it means "absolutely not X" or "X isn't Y at all".

E.g. マイクは野菜やさいをまったく食たべないな。 "Mike doesn't eat veggies at all."

When not paired with a negative verb/adjective, まったく can be used as "Good grief", or "Exactly".

E.g. まったく！ "Good grief!"

E.g. まったくその通とおりだ。 "That's exactly right."

Summary

• 

  まったく means "really; entirely"

• 

  The まったく～ない pattern is used to express "absolutely not X" or "X isn't Y at all"

• 

  まったく can be used on its own to mean "Good grief" or "Exactly..."