1. to lose more ground or progress in a competition, race, or endeavor; to become increasingly disadvantaged or lag further behind others
If we don't invest in new technology, we will fall further behind our competitors.
Se não investirmos em novas tecnologias, ficaremos ainda mais para trás dos nossos concorrentes.
2. to accumulate additional debts or obligations that become harder to overcome
Missing another payment will cause you to fall further behind on your mortgage.
Perder outro pagamento fará você ficar ainda mais atrasado na sua hipoteca.