Definition of unrip in US English:

unrip

verbunripped, unripping, unrips

[with object]rare
  • Open by ripping.

    ‘he carefully unripped one of the seams’
    • ‘They unripped the mattress, and tore out the straw.’
    • ‘I descended alone, and found on unripping the pillow one biscuit and a half deposited therein.’
    • ‘He took his clasp-knife from his pocket, carefully unripped a part of one of the seams in the waistcoat, and extracted a piece of paper folded double.’

Pronunciation

unrip

/ˌənˈrip//ˌənˈrɪp/