destiny vs luckiness

destiny and luckiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
destiny	Yes	No	No	No
luckiness	Yes	No	No	No

As nouns, luckiness is a hyponym of destiny; that is, luckiness is a word with a more specific, narrower meaning than destiny:

destiny: your overall circumstances or condition in life (including everything that happens to you)
luckiness: an auspicious state resulting from favorable outcomes

Other hyponyms of destiny include good fortune, good luck, providence, bad luck, ill luck, misfortune, tough luck, failure.

destiny (noun)	luckiness (noun)
an event (or a course of events) that will inevitably happen in the future	an auspicious state resulting from favorable outcomes
the ultimate agency regarded as predetermining the course of events
your overall circumstances or condition in life (including everything that happens to you)