未(いま)だにstill, even now, until this very day

僕(ぼく)は未(いま)だに小学校(しょうがっこう)の同級生(どうきゅうせい)と仲(なか)がいい。

I still have a good relationship with my elementary school classmates.

未(いま)だにタバコをやめていない父(ちち)が心配(しんぱい)だ。

I am worried because my father still hasn't quit smoking.

新(あたら)しい機械(きかい)の操作(そうさ)方法(ほうほう)を未(いま)だに覚(おぼ)えられていません。

I still haven't been able to remember how to operate the new machine.

彼(かれ)は未(いま)だに独身(どくしん)でいますが、もう結婚(けっこん)願望(がんぼう)はないのでしょうか。

He is still single, but has he given up on the idea of getting married?

十(じゅう)年(とし)も前(まえ)に付(つ)き合(あ)った元(もと)カノの事(ごと)が未(いま)だに忘(わす)れられないなんて気(き)の毒(どく)だね。

It's unfortunate that he still can't forget about his ex-girlfriend from ten years ago.