そんなに

そ

ん

な

に

Common wordJLPTN5Freq.FrequencyTop 1,000

Meanings

Used to emphasize degree, often in negative or questioning contexts. Can express surprise or downplay something.

そんなに〈形けい容よう詞し〉ないnot that (adjective); not as ... as you'd think
この問もん題だいはそんなに難むずかしくないよ。
This problem isn't that difficult.
そんなに〈動どう詞し〉なくてもいいyou don't have to (verb) that much
そんなに心しん配ぱいしなくてもいいよ。
You don't have to worry that much.
そんなに〈形けい容よう詞し〉んですかis it really that ...?
そんなに高たかいんですか。
Is it really that expensive?

それほどN4
そんなに is a more colloquial equivalent of それ程, both meaning 'that much,' but それ程 sounds slightly more formal or literary.
あんなにN3
そんなに means 'that much' in relation to something near the listener or just mentioned, while あんなに points to something more distant or shared as common knowledge.

こんなにN3
そんなに points to a degree associated with the listener or context ('that much'), while こんなに points to a degree close to the speaker ('this much').
あんなにN3
そんなに refers to a degree tied to the listener or something just mentioned, while あんなに refers to a degree distant from both speaker and listener ('that much, over there').
どんなにN3
そんなに states a specific degree ('that much'), while どんなに asks or exclaims about an unspecified degree ('however much; how much').

Derived from the demonstrative そんな (such, like that) + adverbial particle に.