How is it like?

"was good" is...

• いい

• わるい

• よかった

• わるかった

うれしい　means

• busy

• healthy, energetic

• interesting,

  fun

• happy, glad, pleasant

つまらない　is

• not busy, to have a lot of free time

• worst, horrible

• boring

• busy

まあまあな　means

• soso

• not busy,

  to have a lot of freetime

• fun

• healthy, energetic

わるかった　means

• was good

• was bad

• was busy

• was fun

"best, great" is

• いい

• よかった

• さいこうな

• たのしい

たのしい　is

• fun

• busy

• interesting, funny

• healthy, energectic

busy is

• おもしろい

• さいていな

• いそがしい

• たのしい

げんきな　is

• interesting, funny

• energetic, healthy

• was good

• bad, poor, inferior

"not busy, to have a lot of free time" is

• どんな？

• わるい

• つまらない

• ひまな