Antonyms of verb open_up

1 of 7 senses of open up

Sense 7
open up -- (talk freely and without inhibition)
       Antonym of close up (Sense 4)
      => close up, clam up, dummy up, shut up, belt up, button up, be quiet, keep mum -- (refuse to talk or stop talking; fall silent; "The children shut up when their father approached")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb open_up

7 senses of open up

Sense 1
open, open up -- (cause to open or to become open; "Mary opened the car door")

Sense 2
open, open up -- (become available; "an opportunity opened up")
       => arise, come up -- (result or issue; "A slight unpleasantness arose from this discussion")

Sense 3
open, open up -- (make available; "This opens up new possibilities")
       => yield, give, afford -- (be the cause or source of; "He gave me a lot of trouble"; "Our meeting afforded much interesting information")

Sense 4
pioneer, open up -- (open up an area or prepare a way; "She pioneered a graduate program for women students")
       => introduce, innovate -- (bring something new to an environment; "A new word processor was introduced")

Sense 5
open, open up -- (start to operate or function or cause to start operating or functioning; "open a business")

Sense 6
open, open up -- (become open; "The door opened")
       => change state, turn -- (undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election")

Sense 7
open up -- (talk freely and without inhibition)
       => talk, speak, utter, mouth, verbalize, verbalise -- (express in speech; "She talks a lot of nonsense"; "This depressed patient does not verbalize")