positive
gb/pˈɑzɪtɪv/ us/pˈɑzɪtɪv/
B1
英語
~ 1300
語義
0件の語義
adjective
B1
property
1
Optimistic or confident in outlook
Feeling sure that good things will happen or seeing the good side of things.
用法パターン：
[someone] is positive about [something]
よくある間違い：
Learners sometimes confuse 'positive' with 'sure' in contexts like 'I am positive he left,' which is a different meaning.
類義語
optimistic (Focuses on expecting good outcomes, often in a general sense.)
対義語
negative (Focuses on expecting bad outcomes or seeing the bad side of situations.)
コロケーション
positive attitude
|positive outlook
|stay positive
|positive mindset
|remain positive
テーマ
emotions
|daily life
|core_vocabulary
例文
- She always tries to stay positive, even when things are hard.
- The coach was positive about the team's chances.
- His positive attitude helped everyone feel better.
- Despite the setback, they remained positive about the future.
学習者向け例文
- I am positive about my exam.
- She stays positive when it rains.
- He has a positive view of life.
- We try to be positive every day.
adjective
B2
property
2
Indicating the presence of something
Showing that something is there or true, often from a test or check.
用法パターン：
[test/result] is positive for [something]
よくある間違い：
Learners may confuse this use with emotional positivity; here it refers to factual presence, not feelings.
類義語
confirmed (Emphasizes certainty that something is true or present.)
対義語
negative (Indicates absence or lack of something in tests or results.)
コロケーション
test positive
|positive result
|positive for COVID-19
|positive diagnosis
テーマ
science
|health
例文
- The test came back positive for the virus.
- She tested positive for the banned substance.
- The sample showed a positive result for bacteria.
学習者向け例文
- I tested positive for flu.
- The result is positive for sugar.
- He is positive for the illness.
adjective
B1
property
3
Completely certain about something
Being 100% sure about something.
用法パターン：
[someone] is positive that [clause]
よくある間違い：
Learners sometimes confuse this with 'optimistic'; here it refers to certainty, not hopefulness.
類義語
certain (Very close in meaning; interchangeable in most contexts.)
対義語
unsure (Not certain or confident about something.)
コロケーション
absolutely positive
|quite positive
|positive identification
テーマ
daily life
|core_vocabulary
例文
- I’m positive I left my keys on the table.
- She was positive that she had locked the door.
- Are you positive this is the right address?
学習者向け例文
- I am positive we met before.
- She is positive he is here.
- He is positive about the answer.
adjective
technical
B2
property
4
Having a net electric charge of protons
In science, having more protons than electrons in atoms or particles.
類義語
charged (General term for having an electrical charge; not specific to being positive.)
対義語
negative (Having more electrons than protons.)
コロケーション
positive charge
|positive ion
テーマ
science
例文
- A proton has a positive electric charge.
- The particle became positive after losing electrons.
- Positive ions are attracted to negative ones.
学習者向け例文
- A proton is positive.
- This atom is positive.
- Positive charges go to negative charges.
adjective
B1
property
5
More than zero in amount or value
More than zero in number or amount.
類義語
above zero (Plainly describes being greater than zero.)
対義語
negative (Less than zero in value or amount.)
コロケーション
positive number
|positive growth
テーマ
math
|science
例文
- The company reported positive earnings this quarter.
- Temperatures stayed in the positive range all week.
- In math, a positive number is greater than zero.
学習者向け例文
- Two is a positive number.
- We have positive growth this year.
- The temperature is positive today.
文法
辞書形
positive
IPA
GB/pˈɑzɪtɪv/
US/pˈɑzɪtɪv/
音節・強勢
pos - it - ive （3音節）
Stress on 1st syllable (pos)
活用形
Adjective
- Base: positive
関連語
Core family
positively
adverb B1
positivity
noun
Negative and opposite forms
表現
positive thinking
1/pˈɑzɪtɪv θˈɪŋkɪŋ/
fixed phrase
Focusing on good possibilities and outcomes
Trying to think about good things and expect good results instead of bad ones.
例文
- Positive thinking can improve your mood and health.
- She believes in the power of positive thinking.
stay positive
1/stˈeɪ pˈɑzɪtɪv/
fixed phrase
Keep an optimistic attitude
Keep feeling hopeful and looking for good things, even when things are hard.
例文
- Even during tough times, it's important to stay positive.
- She told her friend to stay positive before the big exam.
test positive for
1/tˈɛst pˈɑzɪtɪv fɚ/
fixed phrase
Be confirmed as having something by a test
When a test shows that you have a specific thing, like a disease or substance.
例文
- He tested positive for COVID-19 last week.
- The athlete tested positive for banned drugs.