i Register
In some senses, vague is marked as obsolete, archaic. Watch for register when choosing this word.
VERBS
be, look, sound
When I asked him about his plans for next week, he sounded vague and uncertain.
become, get
His memory became vague after so many years had passed.
remain
leave sth
The author left the ending vague so readers could interpret it differently.
ADV
extremely, hopelessly, very
The instructions he gave us were extremely vague, so we didn't know exactly what to do.
a bit, fairly, a little, pretty, quite, rather, somewhat
enough, sufficiently
The instructions were vague enough that nobody on the team was quite sure what to do.
suitably
deliberately, intentionally
The politician intentionally remained vague about her plans for the economy.
necessarily
Without more information, the doctor's explanation was necessarily vague about what caused the illness.
inherently
The instructions for assembling the furniture were inherently vague, so we had to guess where some pieces went.
notoriously
The instructions for assembling this furniture are notoriously vague and confusing.
PREP
about
She was vague about her plans for the weekend when her friend asked.
as to
The teacher remained vague as to when the exam results would be announced.
in
His directions were vague in detail, so we got lost trying to find the restaurant.