未(ま)だ未(ま)だstill some way to go before the goal, still more to come, much more, not yet

夏(なつ)は長(なが)く、秋(あき)はまだまだ来(き)ません。

Summer is long, and autumn is still far from coming. {still some way to go before the goal, still more to come, much more, not yet}

僕(ぼく)たちの娘(むすめ)は未(ま)だ未(ま)だひとり立(だ)ち出来(でき)ません。

Our daughter still has a long way to go before she can stand on her own. {still some way to go before the goal, still more to come, much more, not yet}

この夏(なつ)はまだまだこれから蒸(む)し暑(あつ)くなると聞(き)きました。

I heard that this summer is still going to get much more humid. {still some way to go before the goal, still more to come, much more, not yet}

弟子(でし)：「僕(ぼく)なんて未(ま)だ未(ま)だ半人前(はんにんまえ)だ…もっともっと修行(しゅぎょう)が必要(ひつよう)だ…。」

Disciple: "I'm still not fully qualified... I need to train much more..." {still some way to go before the goal, still more to come, much more, not yet}

女性(じょせい)：「三(さん)キロ痩(や)せられたわ！よし、このドレスはまだまだ着(き)られるわね！」

Woman: "I've managed to lose 3 kilos! Great, I can still wear this dress for a while longer!" {still some way to go before the goal, still more to come, much more, not yet}