disingenuous

INGENUOUS(can be remembered as genuine) IS SINCERE, INNOCENT AND SOPHISTICATED. AND disingenuous IS not naive, insincere

This word is derived from the word "Genuine", which means true and real. Disingenuous is just the opposite of genuine.

FOCUS ON sin IN THE WORD. CAN RELATE sin TO insincere OR sin TO liar(LIARS ARE NOT SINCERE)

indigenous - Native ingenuous - naive,frank,innocent disingenuous - not naive, sophisticated ingenious - Clever