How to tell them apart
らしい conveys a conjecture based on what you have heard, read, or seen, so it works when you are reporting or inferring from external evidence. っぽい attaches to a noun, adjective, or verb to say something has a distinctive characteristic or tendency, giving a -ish or -like feel. Swapping them is unnatural: 安っぽいソファ means cheapish, not apparently cheap, while 難しいらしい means I hear it is difficult, not difficult-ish.
- らしい Use らしい when you are conjecturing or reporting based on something you heard, read, or saw.
- っぽい Use っぽい when you want to say something has a characteristic or tendency, like -ish or -like.
| Grammar point | Meaning | JLPT level |
|---|---|---|
| らしい rashii | It seems; apparently so | N4 |
| っぽい ppoi | Has the look or quality of; prone to doing something | N3 |
らしい rashii
It seems; apparently so
らしい expresses hearsay or inference, meaning it seems or apparently, when the speaker reports information learned from others or judges from indirect evidence. It follows the plain form of verbs and i-adjectives, as in できているらしい or おいしいらしい, and follows nouns and na-adjective stems directly in the present, as in 病気らしい or 知り合いらしい. For past meaning, use forms like できたらしい or だったらしい. It sounds slightly formal and keeps distance, so avoid it for stating your own direct experience or certain facts.
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その犬は病気だったらしい。
The dog seems to have been sick.
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おい、今度の新人かわいいらしいぜ。
Hey, the new recruit this time seems really cute.
っぽい ppoi
Has the look or quality of; prone to doing something
っぽい adds the sense of -ish to a word, meaning something has the look, feel, or quality of that thing, or that a person is prone to an action. It attaches to nouns as in 子供っぽい, to the masu-stem of verbs as in 忘れっぽい, and to the stem of i-adjectives with い removed. As an i-adjective itself, it conjugates as っぽくない or っぽかった, and in conversation it often carries a critical or teasing tone.
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祖母はだんだん忘れっぽくなり、弱ってきた。
My grandmother was gradually becoming forgetful and frail.
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英語で話すと、子供っぽく見える気がする。
I feel like I look childish when I speak in English.
らしい and っぽい are JLPT N4–N3 grammar points that Japanese learners often mix up. This page compares them side by side on meanings, usage and example sentences, so you can tell them apart.