The term 'too trusting' can be described by two crossword solutions: NAIVE (5 letters) and dewyeyed (8 letters). NAIVE is an adjective that means having or showing a lack of experience, wisdom, or judgment. Dewyeyed is an adjective that means having an innocent, trusting, or childlike quality. Both words describe someone who is too trusting, as they lack the experience and wisdom to recognize when they are being taken advantage of.