The genealogy of the adjective impregnable includes the Middle French word prenable, meaning vulnerable, easily conquered, which itself came from the verb prendre, which meant to take. The addition of the negative prefix im-flipped the meaning. Impregnable can be used to describe anything that cannot be entered or successfully attacked. Seventeenth-century theater critic Jeremy Collier once said, True courage is a result of reasoning. A brave mind is always impregnable.
Learner's definition of MAGNANIMOUS. [more magnanimous; most magnanimous] formal. : having or showing a generous and kind nature. The team was magnanimous in victory. [=the team treated its defeated opponents in a respectful and generous way] She was too magnanimous to resent all the things others had said to her. a magnanimous gesture.
3. vicissitudes, successive or changing phases or conditions, as of life or fortune; ups and downs. vicissitÅ«dÅ = viciss(im) in turn + cessim giving way, adv. derivative of cÄdere to go, proceed]. viâ¢cis`siâ¢tuâ²diâ¢nar`y (-nËÉr i) viâ¢cis`siâ¢tuâ²diâ¢nous, adj. - A sudden or unexpected change in life.