Synonyms of 'sing-song'
He started to speak in a nasal sing-song voice.
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Someone or something boring is so dull and uninteresting that they make people tired and impatient.
boring television programmes
the minister's relentlessly droning voice
Something that is monotonous is very boring because it has a regular, repeated pattern which never changes.
It's monotonous work, like most factory jobs.
Thesaurus for sing-song from the Collins English Thesaurus
A sing-song voice repeatedly rises and falls in pitch .