disenfranchised (adjective): not having the right to vote

...but let me address the argument made by some Members that if a Member is not able to vote, they will be entirely disenfranchised. I do not accept that. There are many other ways in which MPs represent their constituents in Parliament...
The Leader of the House of Commons (Mr Jacob Rees-Mogg), Proceedings During the Pandemic, 2/6/2020

disenfranchised
adjective
not having the right to vote, or a similar right, or having had that right taken away
Definition of disenfranchised, Cambridge English Dictionary