|Origin:||morbidus 'diseased', from morbus 'illness'|
with a strong and unhealthy interest in unpleasant subjects, especially death
a morbid fascination with instruments of torture
The trip was made all the worse by Frankie's morbid fear of flying.
His head was full of morbid thoughts.
relating to or caused by a disease:
a morbid gene
—morbidity noun [uncountable]