a decided + noun
此处的 decided 意为“明确的、显而易见的”，通常放在名词前作定语。
There has been a decided change in his attitude.
他的态度发生了明显的变化。
坚决的；果断的
明确的；毫无疑问的；坚定的,果断的；明确的,确定无疑的；确定的
坚定的,果断的
Determined; resolute.
明确的,确定无疑的
Clear; unmistakable, definite, unquestionable.
He has a decided advantage in the competition.
他在比赛中具有明显的优势。
用法提示：decided 在此句中作形容词，意为“明显的、确定的”。
She was decided in her refusal to accept the offer.
她坚决拒绝接受这个提议。
用法提示：decided 在此句中作形容词，意为“坚决的”。
There is a decided improvement in his health since the treatment.
治疗后，他的健康状况有了明显的改善。
用法提示：decided 在此句中作形容词，意为“明显的”。
此处的 decided 意为“明确的、显而易见的”，通常放在名词前作定语。
There has been a decided change in his attitude.
他的态度发生了明显的变化。
此结构表示“对某事态度坚决、有明确想法”，主语通常为人。
She is very decided about leaving the company.
她对离开公司这件事非常坚决。
该结构强调在某方面表现得坚定、果断，后面接表示行为或态度的名词。
He was decided in his refusal to negotiate.
他坚决拒绝谈判。
最常见的对应词，语气与decided相当，可互换。
较正式，强调意志坚定，多用于书面语。
较口语化，语气略弱，侧重立场或态度稳固。
常作表语，强调已下定决心，如be resolved to do sth。
语气强烈，指长期不动摇，较正式。
grammar · medium
易错句子Our manager is very decided, so she always picks the best option quickly.
正确表达Our manager is very decisive, so she always picks the best option quickly.
decided 的“果断”侧重态度坚定、不犹豫，不强调决策速度；decisive 才表示“善于迅速做出决定”。句中 quickly 强调速度，所以应用 decisive。
grammar · medium
易错句子He was decided upset by the news.
正确表达He was decidedly upset by the news.
decided 是形容词，不能修饰形容词 upset；修饰形容词或动词要用副词 decidedly，表示“明确地、无疑地”。
grammar · medium
易错句子She is decided to study abroad.
正确表达She is determined to study abroad.
decided 作形容词时表示“坚定的、明确的”，但不接不定式作补足语；表示“下决心做某事”应用 be determined to do，或改说 have decided to do。
对应 decided 的“坚定的；果断的”义（指人果断），反义为 indecisive；不可用于“明确的”义。
对应 decided 的“明确的；清晰的”义（指事物或表述明确），反义为 vague；与指人“果断的”义不可互换。
对应 decided 的“确定无疑的”义（指事实或说法无疑），反义为 questionable；该义与“果断的”义无关。
decided表“果断的”时侧重决定已定而不再动摇；decisive则侧重人做事干练、能迅速决断。
decided表“坚定的”时侧重态度明确、不犹豫；determined则强调内心意志坚定，常接不定式。
decided表“明确的”时侧重事实清楚、无可置疑；definite则指某个答复、时间等被明确固定下来。
明显的优势
Her experience gave her a decided advantage in the interview.
她的经验使她在面试中占有明显的优势。
显著的改进
There has been a decided improvement in his health.
他的健康状况有了显著的好转。
明显的变化
We noticed a decided change in her attitude.
我们注意到她的态度发生了明显的变化。
明显的差别
There is a decided difference between the two plans.
这两个方案之间有明显的差别。
明确的偏好
She has a decided preference for classical music.
她对古典音乐有明确的偏好。
de- (away/off) + -cid- (cut) + -ed (adjective suffix); related: decide, decision, decisive, suicide
与decided同为坚定态度，常强调内心决定不动摇。
体现决定后的坚持，与decided的决心语义相关。
指明确无疑的决定结果，呼应decided‘确定无疑’的含义。
表达坚信不疑，与decided的果断和明确相关。
关联决定前的意愿，常见于decided所描述的心境。
我决定坚持爱。仇恨是难以承受的沉重负担。
She has very decided views on the subject.
她在这个问题上有非常坚定的看法。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY, WORDNET.
明确的看法
He has a decided opinion on the matter.
他对这件事有明确的看法。