Learner's definition of DISADVANTAGE
1 a : something that causes difficulty : something that makes someone or something worse or less likely to succeed than others
b : a bad or undesirable quality or feature
This program has the disadvantage [=shortcoming] of being more expensive than the others.
She had the disadvantage of growing up in a poor community.
He felt that his lack of formal education put/placed him at a disadvantage [=made it harder for him to succeed] in the business world.
They argued that the new regulations would place their company at a competitive disadvantage in the marketplace.
2 [noncount] : loss, damage, or harm