IPA: /ɪˈmæk.jə.lət.li/
KK: /ɪˈmæk.jə.lət.li/
In a way that is perfectly clean, neat, or free from flaws.
She arranged the flowers immaculately on the table.
Immaculately → It is formed from "in-" (meaning not) and "maculatus" (from Latin, meaning spotted or stained) and the suffix "-ly" (meaning in a manner). The word "immaculately" means in a manner that is free from spots or stains, hence perfectly clean or pure.
Think of 'not' ('in-') having any 'spots' ('maculatus') to remember that 'immaculately' means something is done in a perfectly clean or pure manner.