clamming up

ADJECTIVE

Synonyms

STRONG

hidden private retired secluded

WEAK

buttoned-up buttoning one's lip close-lipped closemouthed hush-hush mum's the word reticent secretive silent taciturn tight chops tight-lipped uncommunicative unforthcoming zipping one's lips

Antonyms

STRONG

gossipy indiscreet open

WEAK

public

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

clamming up

It’s not clear whether Mor was lying or simply spoke without Belkin’s authorization and is clamming up now.

From The Verge ● Apr. 27, 2022

Investigators said those who were clamming up included the bride, KPRC-TV reported.

From Fox News ● Aug. 22, 2020

“If I were in charge of intelligence operations, I would be worried about sources clamming up tonight.”

From New York Times ● May 24, 2019

Are you clamming up when dates ask questions?

From Slate ● May 14, 2019

Mom totally shuts down, clamming up and falling silent.

From "Dry" by Neal Shusterman and Jarrod Shusterman