na-adjective, noun which may take the genitive case particle 'no'
unable to let go; stuck in the past; full of lingering attachment
Describes a person who cannot move on emotionally, often with a negative or self-critical tone. The mimetic たらたら adds a sense of dripping or oozing, implying the feeling is excessive and persistent.
He's still hung up on his ex-girlfriend.
That attitude of not being able to let go is unbecoming.
Standard kanji-kana mixed spelling.
Katakana variant of the mimetic part; less common but seen in informal writing.
Compound of 未練 (lingering attachment) and the mimetic adverb たらたら (dripping, incessantly), emphasizing an excessive, persistent inability to let go.