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unreliable schedule
[/ˌʌnrɪˈlaɪəbəl ˈskɛdʒuːl/]
noun phrase
pl: unreliable schedules
horário não confiável
1.
A timetable or plan that cannot be depended upon; one that frequently changes or is not kept as promised
The bus service has an unreliable schedule, often arriving late or not at all.
O serviço de ônibus tem um horário não confiável, frequentemente chegando atrasado ou não chegando.
2.
A schedule prone to frequent disruptions, cancellations, or unexpected changes
The airline's unreliable schedule caused passengers to miss their connecting flights.
O horário não confiável da companhia aérea fez com que os passageiros perdessem seus voos de conexão.
NYC Slang
sketch schedule / wack timetable
Synonyms
unpredictable schedule
erratic schedule
inconsistent schedule
undependable schedule
unstable schedule
Antonyms
reliable schedule
dependable schedule
consistent schedule
punctual schedule
predictable schedule
Regional Variations
General Brazilian
horário não confiável
most common usage in Brazilian Portuguese
Rio de Janeiro
horário desconfiável
colloquial variant sometimes used
São Paulo
horário não confiável / cronograma pouco confiável
both forms are acceptable; cronograma more common in business contexts
Portugal
horário pouco fiável
uses 'fiável' instead of 'confiável'; more formal in Portuguese Portuguese
Related Idioms & Phrases
all over the place
hit or miss
up in the air
running on fumes
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