Synonyms of pretender
claimantA claimant is someone who asks to be given something which they think they are entitled to.
• the rival claimant to the French throne
impostorSomeone who is an impostor is dishonestly pretending to be someone else in order to gain an advantage.
• He was an impostor who masqueraded as a doctor.
Thesaurus for pretender from the Collins English Thesaurus
a person who pretends or makes false allegations