Soi-disant

[Mark Zuckerberg]

Calling himself; self-styled; pretended; would-be.

[Rihanna]

as claimed by and for yourself often without justification

[sky]

Self-styled; self-proclaiming; self-proclaimed.

[Agnes]

Self-proclaimed describes a legal title that is recognized by the declaring person but not necessarily by any recognized legal authority. It can be the status of a noble title or the status of a nation. The term is used informally for anyone declaring themselves to any informal title.

[Merna]

swo-dē-zong′, adj. self-styled, pretended. [Fr.]