Theory: Negative adjective prefixes in-, un-, im-, ir-

📘 Theory: Negative adjective prefixes in-, un-, im-, ir-

Prefix	Rule	Examples
🚫 un-	Used with many common adjectives to show the opposite meaning.	unhappy, unfair, uncomfortable, unclear
🧠 in-	Used mostly with Latin-based adjectives.	inactive, insecure, inaccurate, invisible
👄 im-	Used before adjectives beginning with m or p.	impossible, impatient, immature, imperfect
🔥 ir-	Used before adjectives beginning with r.	irregular, irresponsible, irrational, irrelevant

✍️ Exercise: Add the correct prefix: in-, un-, im-, ir-

🌧️ She felt ___happy after spending the whole evening alone.
🧠 His explanation was ___clear, so nobody understood the task.
🚪 It is ___possible to leave the building without a key.
⏰ He became ___patient when the meeting lasted too long.
📉 The data in the report was ___accurate and misleading.
🧊 Her reaction seemed cold and ___human.
🔥 It was ___responsible of him to ignore the warning.
📅 The schedule was ___regular, so we never knew the exact time.
💬 His comment was completely ___relevant to the discussion.
🧩 She felt ___secure about her future after losing her job.
🎭 His smile looked ___natural and forced.
📱 Scrolling for six hours is an ___healthy habit.
🏠 The room was ___comfortable because it was too cold.
🎧 The sound was almost ___audible from the back row.
🌫️ The instructions were ___complete and confusing.
🪞 He gave an ___honest answer during the interview.
🧨 Her behaviour was ___mature for someone her age.
🧱 This wall is almost ___visible in the dark.
💔 It was ___kind to make fun of someone’s insecurity.
📚 The argument was ___logical and full of contradictions.
🚦 Driving so fast in heavy rain is ___safe.
🧠 His fear was ___rational, but he could not control it.
📄 The document was ___valid because it had no signature.
🎨 The colours in the picture looked ___balanced.
🕰️ The old clock was ___perfect but beautiful.
🧍 She felt ___important in that group.
🕳️ The explanation was ___adequate for such a complex topic.
💼 His decision was ___professional and emotional.
🧊 The silence in the room was ___comfortable.
🔎 Some details in the story were ___visible at first.
🌱 It is ___possible to grow without making mistakes.
📢 His tone sounded ___polite and aggressive.
🧬 The result was ___predictable, so everyone was surprised.
🧠 It is ___reasonable to expect perfection all the time.
🛠️ The machine became ___active after the power cut.
🌊 She gave an ___direct answer because she felt nervous.
🧭 His priorities seemed ___clear during that difficult period.