Synonyms for “slackened” include “loosened”, “eased”, and “relented”.
“Loosened” implies that something has become less tight or constricted. For example, “He loosened his tie after a long day at work.” In the context of “slackened”, it suggests that a tension or restriction has been reduced. Just as a rope that was tightly pulled can be loosened, an activity or process that was intense can be slackened and become less intense or constricted.
“Eased” often refers to making something less difficult or painful. For instance, “The pain in her back eased after taking the medicine.” When used as a synonym for “slackened”, it indicates that a pressure or intensity has been diminished. It can be thought of as a gradual reduction in strain or effort, similar to how a burden can be eased.
“Relented” typically means to become less severe or harsh. For example, “The teacher relented and gave the students an extension on their assignment.” In relation to “slackened”, it suggests that a strictness or firmness has been relaxed. It implies a softening or giving in, as if a force that was previously unyielding has now become more flexible and less intense.
In summary, these words all convey a sense of reduction in tension, intensity, or strictness, similar to what “slackened” implies. They can be used in different contexts to describe a lessening of various forms of pressure or constraint.