Without humor or expression of happiness; grave in manner or disposition Example: It was a surprise to see the captain, who had always seemed so serious, laugh so heartily.
Important; weighty; not insignificant Example: This is a serious problem. We'll need our best experts.
Really intending what is said (or planned, etc); in earnest; not jocular or deceiving Example: After all these years, we're finally getting serious attention.
(of a relationship) Committed.
In a serious manner; seriously.
All clues having "SERIOUS"
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You can find a list of possible crossword clues for SERIOUS below.