The adjective is pronounced /peɪsti/. The noun is pronounced /pæsti/.
1.
If you are pasty or if you have a pasty face, you look pale and unhealthy.
My complexion remained pale and pasty...
ADJ
2.
In Britain, a pasty is a small pie which consists of pastry folded around meat, vegetables, or cheese.
N-COUNT
see also Cornish pasty