Freeloaders are individuals who exploit the goodwill of others and make no contribution in return. 'Cheapskate', 'leech', 'sponger', 'parasite', and 'moocher' are some of the synonyms that can be used instead of 'freeloaders'. These words imply similar negative connotations, emphasizing the idea of someone who is unwilling to provide their fair share, either emotionally or financially. Other alternatives include 'deadbeat', 'loafer', and 'slacker'. Ultimately, whichever word you choose, the concept of a freeloader remains the same and is often frowned upon as a negative characteristic in society.