Why do JLPT N1 learners confuse 強烈 with 台無し?

Both words occupy adjacent semantic territory, which is exactly why the JLPT uses them as distractors for each other on multiple-choice items. The fastest way to stop confusing them is to study them as a pair, write a one-sentence contrast in your own words, and drill the pair specifically rather than each word in isolation.

Is 強烈 or 台無し more common on JLPT N1?

Both appear in the JLPT N1 curriculum and either may show up on a given exam. Don't try to predict which one the test will choose — learn to distinguish them and you'll be safe regardless. Both belong to the General Adjectives (2) theme of N1 vocabulary.

How do I practice this confusion pair?

Free option: visit /try and pick a confusion drill. Paid option: none — JLPT Mastery is free during launch. Whichever route you take, the engine specifically re-tests pairs you've gotten wrong rather than rotating through general vocabulary review.

JLPT N1 · Advanced · Meaning confusion

強烈 vs 台無し

Q: What's the difference between 強烈 and 台無し?

強烈 (きょうれつ) means "strong, intense, severe" and 台無し (だいなし) means "mess, spoiled, (come to) nothing". Conceptually, an intense (強烈) force is often the cause of a situation becoming ruined or spoiled (台無し). The strong adjective and the resulting negative state are frequently linked in narrative contexts.

Why JLPT N1 learners mix up 強烈 (きょうれつ, “strong, intense, severe”) and 台無し (だいなし, “mess, spoiled, (come to) nothing”).

強烈

きょうれつ

strong, intense, severe

na-adjective

台無し

だいなし

mess, spoiled, (come to) nothing

na-adjective

Theme: General Adjectives (2)JLPT N1

Why these get confused

Conceptually, an intense (強烈) force is often the cause of a situation becoming ruined or spoiled (台無し). The strong adjective and the resulting negative state are frequently linked in narrative contexts.

How to tell them apart

Anchor on the meaning, not the form. 強烈 (strong, intense, severe) and 台無し (mess, spoiled, (come to) nothing) live in adjacent semantic territory. Memorize the boundary, not just each word.
Read the example sentences below. Seeing each word in its natural context builds a faster lookup than studying the dictionary form alone.

In a sentence

強烈 (strong, intense, severe)

強烈な暑さだ。
空気中には、大麻の強烈な臭いが漂っていた。

台無し (mess, spoiled, (come to) nothing)

トムに週末を台無しにされた。
お前のせいで全てが台無しだよ。

How JLPT tests this pair

On JLPT N1, this pair shows up as a vocabulary meaning question. You see one word and pick its English equivalent from four options — one of which will be the other word in this pair, chosen as a distractor precisely because of the overlap.

Sample item

「強烈」の意味は？