slackening
名词 slackening:
an occurrence of control or strength weakening
同义词:relaxation, loosening
动词 slacken:
become slow or slower
同义词:slow, slow down, slow up, slack, slacken
make less active or fast
同义词:slack, slacken, slack up, relax
become looser or slack
同义词:slacken
make slack as by lessening tension or firmness