The crossword solution for the term 'flabbergasted feeling' is AWE, which is a three-letter word. AWE is an emotion that is often described as a combination of wonder and respect. It is usually experienced when one is confronted with something vast that transcends their understanding or challenges their sense of what is possible. Flabbergasted feeling is a state of being overwhelmed with amazement and admiration, often to the point of being speechless.