spotlessly clean and tidy
free from flaw or error
without blemish; pure
free from sin
said of petals, wings, etc: without spots or other markings
immaculacy /-si/ noun
immaculately adv
immaculateness noun
[Middle English immaculat from Latin immaculatus, from in-1 + maculatus, past part. of maculare to stain, from macula spot, stain]