Definition of unpadlock in US English:

unpadlock

verb

  • with object To unlock the padlock of (a door, etc.); to free by unlocking a padlock.

Origin

Mid 18th century; earliest use found in Tobias Smollett (1721–1771), writer. From un- + padlock.

Pronunciation

unpadlock

/(ˌ)ʌnˈpadlɒk/