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iridescent

adjective/ˌɪrɪˈdɛsənt/

B2CEFR level
50/100Rarity: uncommon
LiteraryRegister

Showing luminous, shifting colours like a soap bubble.

Iridescent scales shimmered as the fish turned.

Similar: shimmering, opalescent, prismatic

Origin: Greek iris 'rainbow'.

Topic: Nature & senses in General English

Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.

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More general words: Nature & senses