Definition of "agender"

All I understand is that G-d is amorphous, agender, etc. so "image" can't be a physical or gender or sexual thing.

2000 July 28, Miriam Wolfe, “Re: The Genealogy of J---s Question”, in alt.messianic‎ (Usenet)

"He" has been used as the default pronoun, and as I said, unfortunately there is no agender equivalent to he/she, as "it" is usually equated with something without life, or at least of a life form considered to be less intelligent (that in itself is negotiable, but this is for a different topic).

2000 November 21, abbycat2 [username], “Re: God and Grammar”, in soc.religion.quaker‎ (Usenet)

But despite this near-universality of gender, cultures can have transgender, agender, and hypergender individuals.

2005 July 20, man_in_black529 [username], “Re: Homosexuality and the Bible”, in alt.politics.democrats‎ (Usenet)

"'Agender'? I'm pretty sure that means not identifying as a particular gender? I'm sorry. That's just what it made me think of. I'm not trying to tell you what to--"]

[2020 April 6, Dan Shive, El Goonish Shive (webcomic), Comic for Monday, Apr 6, 2020