Indulger, as a word, means someone who gives in to their desires or whims. Synonyms for indulger would include words such as pleasure-seeker, hedonist, libertine, and sybarite. Other words could include self-pleaser, self-gratifier, and self-satisfier. These words generally have a negative connotation, suggesting that the person is excessively focused on their own desires and may not care about the consequences. Other synonyms could include synonyms for the verb "indulge," such as spoil, pamper, and gratify, which suggest a similar lack of restraint and focus on personal pleasure. Overall, there are many words that could be used to describe an indulger, but most imply a certain level of excess or self-absorption.