Learn how to say Pollyannaish correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word Pollyanna:
an excessively cheerful or optimistic person:
what I am saying makes me sound like some ageing Pollyanna who just wants to pretend that all is sweetness and light
early 20th century: the name of the optimistic heroine created by Eleanor Hodgman Porter (1868–1920), American author of children’s stories