ゆるんだそうだ
弛んだそうだ
yurunda sōda

Godan Verb (mu)
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of たるむ

1. It seems...; Apparently...; I heard that it relaxed/loosened.

Past/Perfective
Hearsay Evidence
Usually Written in Kana