Identify the Prefix

Target Language or Knowledge:

unhappy rewind precaution irresponsible misunderstood nonfiction underwater oversized subzero prehistoric improper nonexistent unimportant distrust reenter uncover dishonest invisible underarm nonabrasive disqualify illegal overgrown incorrect disobey

un y happy re wind rew pre tion caution ir ible responsible mis under stood non tion fiction under water er over sized ed sub zero o pre historic ic im prop er non exist ent un import ant dis trust distrust re ent er un cov er dis hon est in visible ible under un arm non abrase ive dis qualify y il legal al over grow own in correct ect dis obey y