say it: NAYM-luhs
nameless is an adjective meaning "being or having an unknown or unnamed source". It carries one recorded sense.
being or having an unknown or unnamed source
“a poem by an unknown author”
“corporations responsible to nameless owners”
“an unnamed donor”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for nameless come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.