First class and Open

Opposite meaning terms

sentence examples

First class

First class noun - Mail that includes letters and postcards and packages sealed against inspection.
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Synonyms for First class
Antonyms for First class
Open is an antonym for first class in excellent topic.

Open

Open adjective - Allowing passage without obstruction.
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Synonyms for Open
Antonyms for Open
First class is an antonym for open.
Nearby Words: opening, openness, opened, opener
Similar words of first class

Similar words of open

Both terms in one sentence

  • Useful Notes / The Holocaust Both the first X-Men and X-Men: First Class open in 1944 with him being deported to Auschwitz with his family, with his metal-controlling powers starting to manifest as he is separated from his parents.
    Source: Useful Notes / The Holocaust
Cite this Source
Open and First class. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/first_class/open
First class & Open. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/first_class/open>.
Open or First class. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/first_class/open.

Antonyms for first class


Antonyms for open

Google Ngram Viewer shows how "first class" and "open" have occurred on timeline