marked by courage and determination in the face of difficulties or danger; robust and uninhibited; "you have to admire her; it was a gutsy thing to do"; "the gutsy...intensity of her musical involvement"-Judith Crist; "a gutsy red wine"
quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"
steadfast in affection or allegiance; "years of faithful service"; "faithful employees"; "we do not doubt that England has a faithful patriot in the Lord Chancellor"
not having sexual relations with anyone except your husband or wife, or your boyfriend or girlfriend; "he remained faithful to his wife"