Prefix 'In' Practice (B1-B2) - English Vocabulary Quiz

⏱ Time: 07:30 📝 Questions: 15 📊 Level: B1, B2 📚 Type: Vocabulary ⭐ XP: up to +16 (on pass)

This 15-question Prefix In practice quiz walks you through the topic step by step — from basic recognition to real-world application. Tailored for Level B1-B2, with clear explanations after every question. Great for building confidence before moving to harder topics.

⏱ You have 07:30 to answer 15 questions. The timer only starts when you click Begin.

Q1  15
Q1 15

Question 1: What does the word INDEPENDENT mean?

Question 1 options
Independent means 'not relying on others for support or control.' The prefix 'in-' here means 'not,' and 'dependent' means relying on something or someone. The other options describe different qualities unrelated to self-reliance.
Q2 15

Question 2: The nurse used a needle to ___ the patient with the medicine, putting it directly into the bloodstream.

Question 2 options
Inject means 'to force a liquid into something,' using the prefix 'in-' meaning 'into.' Prescribe means to recommend medicine, insert means to place inside, and infuse can mean to soak, but inject is the precise medical term for using a needle to deliver liquid.
Q3 15

Question 3: The word INSANE uses the prefix 'in-' to mean 'into,' so it describes someone who has gone deeply into their mind.

Question 3 options
False. In 'insane,' the prefix 'in-' means 'not,' so insane means 'not sane.' It does not use the 'in/on' meaning of the prefix.
Q4 15

Question 4: Which word is closest in meaning to INDESTRUCTIBLE?

Question 4 options
Unbreakable is closest in meaning to indestructible, as both describe something that cannot be destroyed or damaged. Fragile means easily broken, temporary means lasting only a short time, and flexible means able to bend, none of which match the meaning.
Q5 15

Question 5: Match each 'in-' prefix word to its correct short definition.

Question 5 options
infallible
inscribe
innocuous
inception
the beginning or start of something
to write or carve words on a surface
never making mistakes or errors
not harmful or dangerous

Select an item on the left, then tap its match on the right.

Each word uses the prefix 'in-' with either the meaning 'not' or 'into/on.' Infallible = never wrong; inscribe = write on; innocuous = not harmful; inception = beginning/start.
Q6 15

Question 6: Which word naturally goes with the phrase 'become ___ with alcohol' to mean someone is made drunk?

Question 6 options
Inebriated means made drunk by alcohol, using the prefix 'in-' meaning 'into a state of.' Infuriated means made very angry, invigorated means energised, and intimidated means made fearful — none relate to alcohol's effect.
Q7 15

Question 7: A: 'Did the new safety rule cause any problems?' B: 'No, it was completely ___. Nobody even noticed the change.'

Question 7 options
Inconspicuous means 'not easily noticed,' fitting a change that went unnoticed. Incomprehensible means impossible to understand, indiscreet means lacking careful judgment, and inconsistent means not regular — none describe something that went unnoticed.
Q8 15

Question 8: The tattoo artist ___ the customer's initials on the bracelet, but the design could not be removed later.

Question 8 options
Inscribed means 'wrote or carved on a surface,' using 'in-' meaning 'on.' Injected means to force liquid in with a needle, insinuated means to suggest indirectly, and inscribed is the only word that correctly describes marking a surface with letters.
Q9 15

Question 9: Put the words/chunks in the correct order to form a natural English sentence:

Question 9 options
  • the word
  • can mean not, in, or on
  • The prefix in
  • depending on

Drag items or use arrows to arrange them in the correct order.

The correct order is 'The prefix in can mean not, in, or on depending on the word.' This is a standard English declarative sentence with subject, verb, and complement clause.
Q10 15

Question 10: After the flood, the town was completely ___ with requests for emergency supplies and assistance.

Question 10 options
Inundated means 'overwhelmed with a large amount of something,' using 'in-' meaning 'into.' It most precisely describes being flooded with requests. Infiltrated means entered secretly, instigated means caused to begin, and incorporated means combined into a whole.
Q11 15

Question 11: In a formal report about a company's history, which word would most appropriately describe the moment the company was first established?

Question 11 options
Inception is the formal word for the beginning or founding of something, making it most appropriate in a formal report. Start and beginning are too informal for a formal business context, and foundation, while formal, refers more to the structure than the moment of starting.
Q12 15

Question 12: Choose the correct form to complete the sentence: 'Her argument was so ___ that even experts in the field struggled to follow it.'

Question 12 options
Incomprehensible is the correct adjective form meaning 'impossible to understand.' Incomprehend is not a standard English word, incomprehension is a noun, and incomprehensibly is an adverb — neither a noun nor adverb fits after 'was so' before a clause.
Q13 15

Question 13: The word INDISCREET is commonly used to describe someone who shares private or sensitive information carelessly.

Question 13 options
True. Indiscreet means lacking caution about what you say or do, especially regarding private matters. It is naturally collocated with situations involving gossip, secrets, or sensitive information shared without care.
Q14 15

Question 14: The politician's speech was ___, mixing ideas from completely different fields that had no logical connection to each other.

Question 14 options
Incongruous means 'out of place or not fitting together,' which precisely describes ideas that do not logically connect. Indiscreet means lacking caution, incompetent means lacking skill, and inconsiderate means not thinking of others — none describe logically mismatched ideas.
Q15 15

Question 15: Read the sentence: 'The ink used in the ancient document was completely indelible, surviving centuries of handling.' What does INDELIBLE mean HERE?

Question 15 options
In this context, indelible means 'impossible to remove or wash away.' The ink survived centuries, showing it could not be erased. It does not mean invisible, expensive, or fragile in this context.