delicacy vs daintiness

delicacy and daintiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
delicacy	Yes	No	No	No
daintiness	Yes	No	No	No

As nouns, delicacy and daintiness are synonyms defined as:

delicacy and daintiness: the quality of being beautiful and delicate in appearance

Other synonyms of delicacy include fineness.

delicacy (noun)	daintiness (noun)
the quality of being beautiful and delicate in appearance	the quality of being beautiful and delicate in appearance
subtly skillful handling of a situation
lack of physical strength
slenderness
lightness in movement or manner
refined taste; tact
something considered choice to eat