tight–lipped
1 ENTRIES FOUND:
Britannica Dictionary definition of TIGHT–LIPPED
[more tight–lipped; most tight–lipped]
1
:
not willing to speak about something
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He remained tight-lipped about his plans.
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tight-lipped witnesses
2
:
having your lips pressed tightly together because you are thinking hard, angry, etc.
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He was tight-lipped in concentration.
