Thelonius rhymes with:
felonious, palonius, acrimonious, antonius, erroneous, felonious, harmonious, palonius, parsimonious, sanctimonious, unceremonious
Thelonius sounds like:
tailing, tailings, tallying, talmage, talons, teeling, telemacho, telling, telmex, telmex's, thalamus, thelma's, tiddlywinks, tilling, toddling, toiling, tolling, tooling, totaling, totalling, toweling, twiddling