Help w/Cantonese translation of 2 words

[Cindy]

Can anyone please translate in Cantonese: "determined" and "untouchable"? Many thanks in advance for your assistance.

[Ah Tiong]

Determined --- 堅決(o既)
Untouchable --- 難捉摸(o既)/不可捉摸的

[RJ]

Could you also help with these phonetics? "tsim gua" and "mua gua"? thanks