The difference between Generic and Indefinite

Generic as an adjective:

Very comprehensive; pertaining or appropriate to large classes or groups as opposed to specific.

Generic as an adjective:

Lacking in precision, often in an evasive fashion; vague; imprecise.

Generic as an adjective (of a product or drug):

Not having a brand name.

Generic as an adjective (biology, not comparable):

Of or relating to a taxonomic genus.

Generic as an adjective:

Relating to gender.

Generic as an adjective (grammar):

Specifying neither masculine nor feminine; epicene.

Generic as an adjective (computing):

(Of program code) Written so as to operate on any data type, the type required being passed as a parameter.

Generic as an adjective (geometry, of a [[point]]):

Having coordinates that are algebraically independent over the base field.

Generic as a noun:

A product sold under a generic name.

Generic as a noun:

A wine that is a blend of several wines, or made from a blend of several grape varieties.

Generic as a noun (grammar):

A term that specifies neither male nor female.

Indefinite as an adjective:

Without limit; forever, or until further notice; not definite.

Indefinite as an adjective:

Vague or unclear.

Indefinite as an adjective:

Undecided or uncertain.

Indefinite as an adjective (mathematics):

Being an integral without specified limits.

Indefinite as an adjective (linguistics):

Designating an unspecified or unidentified person or thing or group of persons or things

Indefinite as a noun (grammar):

A word or phrase that designates an unspecified or unidentified person or thing or group of persons or things.