How many phonemes are there in the word unbelievable?

Let's break down the word "unbelievable" to count its phonemes:

* un - /ʌn/ (one phoneme)

* be - /bi/ (one phoneme)

* liev - /liːv/ (one phoneme)

* able - /əbəl/ (two phonemes)

Adding these together: 1 + 1 + 1 + 2 = 5 phonemes

Therefore, there are 5 phonemes in the word "unbelievable".