i Register
In some senses, serious is marked as colloquial. Watch for register when choosing this word.
serious
UK /ˈsɪə̯.ɹi.əs/ US /ˈsɪɚ.i.əs/
adj 4adv 1
Collocations
10(adj.) bad/dangerous
VERBS
be, look, seem, sound
become, get
The situation became serious when the company announced it would close three factories.
remain
ADV
extremely, particularly, really, very | fairly, quite | potentially
(adj.) not joking
VERBS
be, look, sound
She sounded serious when she told us the project deadline had been moved up by two weeks.
become, turn
When the teacher walked in, the students turned serious and put away their phones.
ADV
deadly, quite, very
PREP
about
My parents are serious about moving to a smaller house next year.
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