Following his ordination to the priesthood, he did pastoral work in Rome, and served as director of the Institute of S. Girolamo degli Schiavoni for twenty years.
On 8 December 1916, Lucidi was appointed secretary of the Apostolic Signatura, as well as papal auditor and palatine prelate, by Pope Benedict XV.
Pope Pius XI created him Cardinal-Deacon of S. Adriano al Foro in the consistory of 20 December 1923.
[1] In 1924, Cardinal Lucidi acted as papal legate to the Emilian Eucharistic Congress in Parma.
He was initially buried in the chapel of Propaganda Fide at the Campo Verano cemetery, but his remains were later transferred to the church of his native Montefranco, which he had helped to restore, on 21 June 1929.