Definition
: lacking in candor; also : giving a false appearance of simple frankness : calculating

Did You Know?
A disingenuous remark might contain some superficial truth, but it is delivered with the intent to deceive or to serve some hidden purpose. Its base word ingenuous (derived from a Latin adjective meaning “native” or “freeborn”) can describe someone who, like a child, is innocent or lacking guile or craftiness. English speakers began frequently joining the negative prefix dis- with ingenuous to create disingenuous during the 17th century.

Examples
“There are plenty of ways to be passive aggressive toward someone on their birthday, including … making a disingenuous comment about whatever he is doing for his special day when you know you aren’t invited….” — Sylvan Lane, Mashable, 27 June 2014