keen
$ \mathrm{keen}^1 |kēn|
https://gyazo.com/f82ba55ca8b3fe5ccf929a58ff8fbbdd
SHARP implies quick perception, clever resourcefulness, or sometimes questionable trickiness. e.g. sharp enough to spot a confidence game
e.g. a keen observer of the political scene
ACUTE implies a power to penetrate and may suggest subtlety and sharpness of discrimination. e.g. an acute sense of style
EAGER implies ardor and enthusiasm and sometimes impatience at delay or restraint. e.g. eager to get started
AVID adds to EAGER the implication of insatiability or greed. e.g. avid for new thrills
e.g. keen on the latest fashions
ANXIOUS emphasizes fear of frustration or failure or disappointment. e.g. anxious not to make a social blunder
ATHIRST stresses yearning but not necessarily readiness for action. e.g. athirst for adventure
adjective
〖名詞の前で〗鋭い〈五感〉; 鋭敏[明晰]な〈知力など〉
e.g. I have keen eyesight.
〖通例名詞の前で〗強い, 深い〈関心・意識・感覚など〉
e.g. her keen intellect
e.g. a keen understanding of animal psychology.
⦅文⦆ 〈風・寒さなどが〉身を切るような, 骨身にしみる.
〈音・光などが〉すさまじい, 強烈な; 〈痛みなどが〉痛烈な; 〈においが〉鼻をさす
⦅主に英⦆ ; 〖be ~ to do〗 〈人が〉…したいと熱望[切望]して; «…を/…ということを» 切望して «for/that節» ; 〖be ~ for A to do〗 Aが…するのを熱望して(eager) e.g. keen believers in the monetary system
e.g. a keen desire to learn.
〖be ~ on [about] A〗 A〈人・物・事〉が大好きで (!Aは〖名詞〗〖動名〗) ; A〈趣味・スポーツなど〉に熱中して; ⦅英⦆ A〈異性〉に夢中で; 〖通例名詞の前で〗(趣味・仕事・勉強などに)熱心 [意欲的]な〈人〉
e.g. Bob makes it obvious he's keen on her.
⦅米俗・やや古⦆ ; 〖be ~〗 すばらしい, すてきな.
e.g. I would soon fly to distant stars—how keen!
⦅主に英⦆ 〈価格が〉(競争のために)安い, 破格(値)の.
ORIGIN
$ \mathrm{keen}^2 |kēn|
verb no object
⦅主にアイル・文・古⦆ (死者に対して)哀歌を歌う; 【死者を】泣き悲しむ[叫ぶ] «over» .
e.g. the body of Johnny was taken by his own people who keened over him.
e.g. the wind blew and wild birds keened in the sky.
noun
(死者への)哀歌; 泣き悲しむこと
ORIGIN