Being optimistic is an attitude of HOPE and positivity, even in the face of adversity. The crossword solutions for the term 'Be Optimistic' are UPBEAT (6 letters), HOPE (4 letters), ROSIER (6 letters), HOPEFORTHEBEST (14 letters), and KEEPONESCHINUP (14 letters). UPBEAT is a synonym for cheerful and enthusiastic, while HOPE implies having a positive outlook on the future. ROSIER is a word that means more favorable or promising, and HOPEFORTHEBEST and KEEPONESCHINUP are both phrases that encourage optimism and perseverance.