To imagine to exist; to have a slight or vague opinion of the existence of, without proof, and often upon weak evidence or no evidence; to mistrust; to surmise; commonly used regarding something unfavorable, hurtful, or wrong; as, to suspect the presence of disease. "Nothing makes a man suspect much, more than to know little; and therefore men should remedy suspicion by procuring to know more." "From her hand I could suspect no ill."