WordNet

very difficult to accept or bear; "the bitter truth"; "a bitter sorrow"
the taste experience when quinine or coffee is taken into the mouth (同)bitterness
English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft)
causing a sharp and acrid taste experience;"quinine is bitter"
expressive of severe grief or regret; "shed bitter tears"
make bitter
proceeding from or exhibiting great hostility or animosity; "a bitter struggle"; "bitter enemies"
a substances that colors metals
stain or tint with a color; "The leaves were tinctured with a bright red"
(pharmacology) a medicine consisting of an extract in an alcohol solution
alcoholic liquor flavored with bitter herbs and roots
secure with a bitt; "bitt the ship line"

PrepTutorEJDIC

『苦い』 / 『つらい』　苦しい,きびしい,悲痛な / (寒気などが)『きびしい』 / 敵意に満ちた,恨みに思っている / 冷酷な;しんらつな;彼肉な / ひどく(bitterly) / 〈C〉《the bitter,the bitters》苦さ,苦しみ,つらさ,きびしさ / 〈U〉《英》苦味ビール(bitter beer) / 《複数形で》(カクテルなどに混ぜる)ビターズ,苦味剤
チンキ(薬をアルコールに溶いたもの) / {U}《しばしばa~》(…)気味,(…な)ところ《+of+名》(trace) / 色;色合い / …‘を'着色する,染める / …‘に'味をつける,風味を与える