reasonable
gb/ɹˈiznəbəl/ us/ɹˈiznəbəl/
A2
英語
~ 1600
語義
0件の語義
adjective
B1
property
1
Fair and sensible
Thinking or acting in a fair and sensible way.
用法パターン：
[someone/something] is reasonable
よくある間違い：
Learners sometimes confuse 'reasonable' with 'rational'—'reasonable' often implies fairness as well as logic, while 'rational' focuses only on logic.
類義語
sensible (Emphasizes practicality and good judgment.)
|
rational (Focuses on logic and clear thinking.)
対義語
unreasonable (Describes thinking or behavior that is not fair or sensible.)
|
irrational (Implies a lack of logical thinking.)
コロケーション
reasonable person
|reasonable decision
|reasonable approach
|reasonable request
|perfectly reasonable
テーマ
daily life
|communication
|emotions
|core_vocabulary
例文
- It's reasonable to ask for more time to finish the project.
- She made a reasonable suggestion during the meeting.
- Most people think it's reasonable to save money for emergencies.
- The teacher offered a reasonable explanation for the change in schedule.
学習者向け例文
- It is reasonable to be careful.
- He made a reasonable plan for the trip.
- That is a reasonable question.
- My boss is very reasonable.
adjective
A2
property
2
Fair in amount or price
Not costing too much; fair in size or amount.
用法パターン：
[something] is reasonable
よくある間違い：
Learners may confuse 'reasonable' here with 'cheap'—'reasonable' means fair and not too high, but not necessarily very low.
類義語
affordable (Focuses on being within someone's budget.)
|
moderate (Suggests being within a middle range, not extreme.)
対義語
expensive (Costs too much money.)
|
excessive (Too high in amount or degree.)
コロケーション
reasonable price
|reasonable cost
|reasonable fee
|reasonable rate
テーマ
shopping
|economics
|daily life
|business
|finance
|core_vocabulary
例文
- The hotel offers rooms at a reasonable price.
- We found a restaurant with reasonable portions and good service.
- The repair bill was quite reasonable considering the work done.
学習者向け例文
- This shirt has a reasonable price.
- The ticket is reasonable for the show.
- We paid a reasonable fee.
adjective
B1
property
3
Within acceptable limits
Not too much or too little; acceptable in amount, time, or effort.
用法パターン：
[something] is reasonable
類義語
acceptable (Meets general standards of appropriateness.)
|
moderate (Falls within middle limits, not extreme.)
対義語
unacceptable (Not meeting standards or limits.)
|
excessive (Going beyond what is appropriate.)
コロケーション
reasonable time
|reasonable distance
|reasonable effort
テーマ
daily life
|measurement
|core_vocabulary
例文
- You should receive a reply within a reasonable time.
- It's a reasonable distance to walk from here to the station.
- We expect employees to work a reasonable number of hours.
学習者向け例文
- I will come in a reasonable time.
- It is a reasonable distance to the park.
- That is a reasonable amount of food.
文法
辞書形
reasonable
IPA
GB/ɹˈiznəbəl/
US/ɹˈiznəbəl/
音節・強勢
reas - on - able （3音節）
Stress on 1st syllable (reas)
活用形
Adjective
- Base: reasonable
関連語
Core family
reason
noun A2
reasonably
adverb B1
Related words
reasoning
noun
reasonableness
noun
Negative and opposite forms
unreasonable
adjective B1
unreasonably
adverb
Advanced or less common
unreasonableness
noun
表現
a reasonable doubt
2/ə ɹˈiznəbəl dˈaʊt/
fixed phrase
formal
Legal uncertainty preventing conviction
A level of uncertainty in law that means the person cannot be found guilty.
例文
- The jury could not convict because there was a reasonable doubt about his guilt.
- In criminal cases, guilt must be proven beyond a reasonable doubt.
perfectly reasonable
1/pˈɚfəktli ɹˈiznəbəl/
fixed phrase
Completely fair and sensible
Very fair and sensible; easy to understand as right.
例文
- It's perfectly reasonable to ask for help when you're struggling.
- Her concerns are perfectly reasonable given the situation.
within reason
1/wɪðˈɪn ɹˈizən/
fixed phrase
within sensible limits
Not going too far; in a fair or sensible way.
例文
- You can borrow my car, within reason.
- I’ll help you as much as I can, within reason.
within reason
2/wɪðˈɪn ɹˈizən/
fixed phrase
acceptable and sensible limits
Allowed or possible but only up to a sensible limit.
例文
- You can borrow the car anytime, within reason.
- We can negotiate the price, within reason.
within reason
3/wɪðˈɪn ɹˈizən/
fixed phrase
Within acceptable limits
As long as something stays fair, safe, or possible.
例文
- You can borrow my car whenever you want, within reason.
- We encourage creativity, within reason, to keep projects on track.