The term 'not tough' can be described by a variety of words, such as LENIENT (7 letters), TENDER (6 letters), EASIER (6 letters), EASY (4 letters), SOFT (4 letters), FACILE (6 letters), and FRAGILE (7 letters). These words all describe something that is not difficult or hard to do. LENIENT implies a relaxed attitude or leniency in judgement, while TENDER suggests gentleness or kindness. EASIER and EASY both refer to something that is not challenging or difficult. SOFT and FACILE both imply something that is easily done or managed, while FRAGILE implies something that is delicate and easily broken.