loading vs indefinite quantity

loading and indefinite quantity both are nouns.

Word	Noun	Adjective	Verb	Adverb
loading	Yes	No	No	No
indefinite quantity	Yes	No	No	No

As nouns, indefinite quantity is a hypernym of loading; that is, indefinite quantity is a word with a broader meaning than loading:

loading (noun)	indefinite quantity (noun)
the labor of putting a load of something on or in a vehicle or ship or container etc.	an estimated quantity
goods carried by a large vehicle
weight to be borne or conveyed
a quantity that can be processed or transported at one time
the ratio of the gross weight of an airplane to some factor determining its lift