Why do JLPT N2 learners confuse 早速 with うろうろ?

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 早速 or うろうろ more common on JLPT N2?

Both appear in the JLPT N2 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 Expressions theme of N2 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 N2 · Upper Intermediate · Meaning confusion

早速 vs うろうろ

Q: What's the difference between 早速 and うろうろ?

早速 (さっそく) means "at once, immediately, without delay, promptly" and うろうろ (うろうろ) means "loiteringly, aimless wandering". Both are adverbs describing the speed or timing of an action. 早速 (sassoku) implies purposeful speed, while うろうろ implies a lack of speed and purpose, making them opposites that a learner might mix up.

Why JLPT N2 learners mix up 早速 (さっそく, “at once, immediately, without delay, promptly”) and うろうろ (うろうろ, “loiteringly, aimless wandering”).

早速

さっそく

at once, immediately, without delay, promptly

adverb

うろうろ

loiteringly, aimless wandering

adverb

Theme: General ExpressionsJLPT N2

Why these get confused

Both are adverbs describing the speed or timing of an action. 早速 (sassoku) implies purposeful speed, while うろうろ implies a lack of speed and purpose, making them opposites that a learner might mix up.

How to tell them apart

Anchor on the meaning, not the form. 早速 (at once, immediately, without delay, promptly) and うろうろ (loiteringly, aimless wandering) 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

早速 (at once, immediately, without delay, promptly)

早速のご返信ありがとうございます。
さっそく仕事にとりかかりましょう。

うろうろ (loiteringly, aimless wandering)

彼は重労働に慣れている。
どこか暖かいとこに入ろう。

How JLPT tests this pair

On JLPT N2, 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

「早速」の意味は？