worthiness as an opponent; challenge
Used when evaluating whether someone or something is worth competing against or engaging with; often appears in contexts like games, sports, or debates.
He is strong, so he is a worthy opponent.
This problem is difficult and challenging.
Compound of 弾き (hiki, 'playing' or 'plucking', from 弾く) and 応え (gotae, 'response' or 'worth', from 応える). The exact historical derivation is uncertain, but the word conveys the idea of a satisfying response when engaging with something.