1. a phrase, word, or manner of speaking that is old-fashioned and no longer commonly used in modern language
Phrases like 'thee' and 'thou' are antiquated expressions that sound strange to modern ears.
Frases como 'thee' e 'thou' são expressões antiquadas que soam estranhas aos ouvidos modernos.
2. outdated or obsolete language that reflects a previous historical period or era
Her grandmother used many antiquated expressions from the 19th century.
Sua avó usava muitas expressões antiquadas do século XIX.