値あたいする

あ

た

い

す

る

Common wordJLPTN1Freq.FrequencyTop 20,000

値する · suru verb (irregular)

Meanings

Intransitive suru verb; almost always used as 〜に値する to mean 'is worth/deserving of something'. The object of worth is marked with に.

〈事こと〉に値あたいするto be worthy/deserving of ~
彼かれの勇ゆう気きある行こう動どうは称しょう賛さんに値あたいする。
His courageous action deserves praise.
〈動どう詞し〉に値あたいするworth doing ~
この映えい画がは一いち度ど見みるに値あたいする。
This movie is worth watching at least once.

ふさわしいN2
値する is a formal verb meaning 'to be worthy/deserving of something' (used as 〜に値する), while ふさわしい is an adjective meaning 'suitable' or 'fitting' and covers a broader range of appropriateness, not just merit.
相そう応おうN1
相応する means 'to be commensurate with' or 'to match' something in degree, whereas 値する specifically means 'to deserve' or 'to be worth' praise, punishment, attention, etc.
足たるN2
値する means 'to deserve' or 'be worth', closely matching the 〜に足る sense of 足る but usable more broadly outside that fixed grammatical pattern.

From 値 (あたい, 'value, worth') + する (suru, 'to do'). The kanji 値 is used for value/worth, while 価 is an alternate character with similar meaning.