Once-in-a-lifetime
Unusual and once-in-a-lifetime are semantically related. In some cases you can use "Unusual" instead an adjective phrase "Once-in-a-lifetime".
Unusual
Unusual adjective - Noticeably different from what is generally found or experienced.
Once-in-a-lifetime and unusual are semantically related. You can use "Once-in-a-lifetime" instead an adjective "Unusual".
Mutual synonyms
Cite this Source
Unusual and Once-in-a-lifetime. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/once-in-a-lifetime/unusual
Once-in-a-lifetime & Unusual. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/once-in-a-lifetime/unusual>.
Unusual or Once-in-a-lifetime. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/once-in-a-lifetime/unusual.
