antilepton vs antimuon

antilepton and antimuon both are nouns.

Word	Noun	Adjective	Verb	Adverb
antilepton	Yes	No	No	No
antimuon	Yes	No	No	No

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

antilepton: the antiparticle of a lepton
antimuon: the antiparticle of a muon; decays to positron and neutrino and antineutrino

Other hyponyms of antilepton include positive muon, antineutrino, antitauon, tau-plus particle, antielectron, positron.

antilepton (noun)	antimuon (noun)
the antiparticle of a lepton	the antiparticle of a muon; decays to positron and neutrino and antineutrino