deliberate or conscious neglect; negligence; delinquency: dereliction of duty.
the act of abandoning something.
the state of being abandoned.
Law. a leaving dry of land by recession of the water line.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use dereliction in a sentence
Collectively, their national commitments constitute a dereliction of duty on a global scale, and a damning failure of leadership and diplomacy.Our Leaders Failed Us at COP26. To Succeed at COP27, They'll Need to Put Self-Interest Aside | Mary Robinson | November 18, 2021 | Time
People in Texas died at disproportionate rates because of a dereliction on behalf of the governor.In Texas-Mexico Border Towns, COVID-19 Has Had an Unconscionably High Death Toll | René Kladzyk, Phil Galewitz and Elizabeth Lucas | El Paso Matters and KHN | June 22, 2021 | Time
Documents released on Friday suggest some could face criminal charges of dereliction of duty or negligence, but no charges have been announced.Deadly Marine Corps disaster at sea was ‘tragic’ and ‘preventable,’ investigation finds | Dan Lamothe | March 26, 2021 | Washington Post
This is a dereliction of duty, pure and simple—a firing offense.
Christie still has time to learn from this dereliction of duty.Why 'Bridgegate' Will Make or Break Chris Christie | John Avlon | January 19, 2014 | THE DAILY BEAST
Seaman's mind-boggling dereliction of responsibility harms the state whose interests he was, and is, tasked with protecting.Bullying Israeli Government Flack Sparks Diplomatic Row—Among Other Concerns | Noga Tarnopolsky | August 21, 2013 | THE DAILY BEAST
By rejecting this last attempt to suborn a dereliction of duty, Henry saved my reputation, my honor, my life, really.John McCain’s Surprising Toast at Kissinger’s 90th Birthday Party | The Daily Beast | June 4, 2013 | THE DAILY BEAST
It had suffered a sizeable brain drain, since over a third of its workforce was fired by Chavez for dereliction of duty.
Nor are you deviating from Christian charity in not overlooking a dereliction of so material a sort.The Ladies' Book of Etiquette, and Manual of Politeness | Florence Hartley
To abandon any part of the inheritance of primitive times would be gross heresy, a fatal dereliction of Christian duty.The English Church in the Eighteenth Century | Charles J. Abbey and John H. Overton
By that time Jack had recovered his usual good nature, and was as ready to jest as his companion over his dereliction of duty.Two Boys in Wyoming | Edward S. Ellis
The duties of both rank and file were strictly laid down by Washington, and any dereliction was punished with military strictness.Revolutionary Reader | Sophie Lee Foster
I never heard of any of them being removed for incompetency, dereliction of duty or malfeasance.
British Dictionary definitions for dereliction
deliberate, conscious, or wilful neglect (esp in the phrase dereliction of duty)
the act of abandoning or deserting or the state of being abandoned or deserted
accretion of dry land gained by the gradual receding of the sea or by a river changing its course
the land thus left
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012