adverb taking the 'to' particle, adverb
hanging loosely; dangling limply
Describes something hanging or dangling in a loose, limp, or swaying manner, often with the particle と.
猫がぶらんとぶら下がっている。
The cat is hanging loosely.
彼の腕はぶらんと垂れていた。
His arm was dangling limply.