precário significado em Inglês

precarious▼(dangerously insecure or unstable; perilous)
adjective
[UK: prɪˈk.eə.rɪəs] [US: priˈk.e.riəs]

rickety▼(not strong because of poor construction or upkeep)
adjective
[UK: ˈrɪk.ə.ti] [US: ˈrɪk.ə.ti]