ultraserious

adjective

ul·tra·se·ri·ous ˌəl-trə-ˈsir-ē-əs

: extremely serious: such as

: very thoughtful or subdued in appearance or manner

wearing an ultraserious expression

: having exceedingly important or dangerous consequences

an ultraserious problem/injury

also : involving or deserving an exceedingly large amount of thought, attention, or work

an ultraserious topic

: not joking or funny

her ultraserious tone/expression

: extremely interested or devoted

an ultraserious student

: exceedingly great or impressive in quality, quantity, extent, or degree

an ultraserious piece of equipment

Examples of ultraserious in a Sentence

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Huebel played the part as an ultraserious Jeff Probst type, standing by gravely as the moms took off their bikini tops and threw them in a fire pit when they were voted off the island. —