The crossword solution for the term 'betrayed boredom' is 'YAWNED, ' which is a six-letter word. Yawning is a reflexive action that is often associated with tiredness, boredom, or lack of interest. It can also be used as a sign of disrespect or to express disapproval. In this case, the yawning could be seen as a sign of betrayal, as it implies that the person is not interested in what is being said or done.