ad‧e‧noid‧al /ˌædəˈnɔɪdl◂, ˌædɪˈnɔɪdl◂, ˌæd
ənˈɔɪdl◂/
adjective an adenoidal voice is unpleasant and sounds as if it comes mainly through someone’s nose
Synonym : nasal:
her adenoidal singing voice [TahlilGaran] Dictionary of Contemporary English ▲