What is another word for almost unheard-of?
Pronunciation: [ˈɔːlmə͡ʊst ʌnhˈɜːdɒv] (IPA) 
The phrase "almost unheard-of" implies something rare or uncommon. Some synonyms for this term may include "unprecedented," "rare," "unique," "obscure," "unfamiliar," and "uncommon." Similarly, phrases such as "exceptionally rare," "extremely uncommon," "seldom seen," "unusual," and "scarce" could also be used to convey the same message. The use of such synonyms can add variety and emphasis to written or spoken communication, and can help to engage the reader or listener by using language that is fresh and interesting. Whatever the context, using synonyms for "almost unheard-of" can help to make a message more memorable and impactful.
