The term 'hapless ones' can be defined by the crossword solutions of ZHLUBS (6 letters), LOSERS (6 letters), SAPS (4 letters) and SADSACKS (8 letters). ZHLUBS is a slang term for someone who is clumsy or inept. LOSERS are people who have been unsuccessful in achieving their goals. SAPS are people who are easily taken advantage of due to their naivety or gullibility. SADSACKS are people who are generally unhappy or unlucky. All of these terms refer to people who are unfortunate or lack luck, which is the definition of hapless ones.