Definitions in relation to their use in these kangaroo words, taken from Google Dictionary, and edited for formatting.
Kangaroo word: prurient
Joey word: pure
prurient (adjective): having or encouraging an excessive interest in sexual matters.
pure (adjective): wholesome and untainted by immorality, especially that of a sexual nature.
The letters P, U, R, and E found within the anti-kangaroo word “prurient” arrange in the listed order to complete the joey word “pure”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share an opposite meaning: salacious vs. chaste.