Correct

弛缓

/ chí huǎn /
Strokes

Definition

to relax/to slacken/relaxation (in nuclear magnetic resonance)

Example

As a Verb

calm down; slow down; relax

1
Shìjiè
世界
jǐnzhāng
紧张
shì
局势
chíhuǎn
弛缓
  

World tension has eased off.

As an Adjective

lax

2
纪律
chíhuǎn
弛缓

be lax in enforcing/maintaining/observing discipline