flawed

Etymology

From Middle English flaued, equivalent to flaw + -ed.

adj

1. Having a flaw or imperfection.
   Flawed diamonds are generally not used in jewellery.
   His design for a perpetual motion machine is flawed because water does not flow uphill.
   He presents Hitler’s rise as an element of the collapse of a republic confronting dilemmas of globalization with imperfect instruments and flawed leaders. June 14 2018, Timothy Snyder, “How Did the Nazis Gain Power in Germany?”, in The New York Times
   Yet he was correct on every point, meaning that the Plan was deeply flawed from the start. March 8 2023, David Clough, “The long road that led to Beeching”, in RAIL, number 978, page 42