Tiada is generally abbreviated colloquially to t’ada and t’a’ (in Java trada and tra).
Antah is an expression of doubt.
Examples.
Yes or no?— Ya atau tidak.
That which is he causes not to be; that which is not he causes to be— Yang ada dia tidak-kan, yang tidak dia ada-kan.
It is nothing = never mind— Tidak apa.
He got no small quantity of fish— Dia men-dapat ikan bukan sadikit.
Her beauty was of no ordinary kind— Molek-nia bukan alang-kapalang.
Is this his house or not?— Ini-kah rumah dia atau bukan?
Indescribable, wonderful— Bukan buat-an lagi (lit. it was no longer doing).