IPA: /ˌlækəˈdeɪzɪkli/
KK: /lækəˈdeɪzɪkli/
In a way that shows a lack of enthusiasm or interest; done without much care or effort.
He completed his homework lackadaisically, barely paying attention to the instructions.
Lackadaisically → It is formed from 'lackadaisy' (a variant of 'lackadaisical', which is derived from the phrase 'lack a daisy', meaning to be lazy or indifferent) and the suffix '-ly' (meaning in a manner of). The word describes doing something in a lazy or indifferent manner.
Think of someone who is 'lacking' energy or enthusiasm, as suggested by 'lackadaisy', and remember that 'lackadaisically' means doing something in a lazy or indifferent way.
No commonly confused words.