Not asked for. (Cambridge Dictionary)
Not asked for or requested : not solicited/ (Merriam – Webster)
Something that is unsolicited has been given without being asked for and may not have been wanted. (Collins Dictionary)
Not asked for; given or done voluntarily. (Oxford Dictionaries)
What does usually happen when a design thinker delivers unsolicited meaning to an audience that is not prepared to understand nor listen to anything out of their system of knowledge?