かのようだ details
as if; just as though — a likeness the speaker knows is not the fact
彼は何も聞いていなかったかのように、平気な顔で話し続けた。
kare wa nani mo kiite inakatta ka no you ni, heiki na kao de hanashitsuzuketa.
He carried on talking with a straight face, as if he had heard nothing. neutral
五月なのに、まるで真夏が来たかのようだ。
gogatsu na noni, marude manatsu ga kita ka no you da.
It's May, and yet it's as if midsummer had arrived. neutral
- alternant
- adnominal
- literary
- past
- polite
Examples
as if; just as though — describes something by a likeness the speaker treats as untrue
彼は何も聞いていなかったかのように、平気な顔で話し続けた。
kare wa nani mo kiite inakatta ka no you ni, heiki na kao de hanashitsuzuketa.
He carried on talking with a straight face, as if he had heard nothing. neutral
五月なのに、まるで真夏が来たかのようだ。
gogatsu na noni, marude manatsu ga kita ka no you da.
It's May, and yet it's as if midsummer had arrived. neutral
会場は、時が止まったかのように静まり返っておりました。
kaijou wa, toki ga tomatta ka no you ni shizumarikaette orimashita.
The hall had fallen silent, as though time itself had stopped. formal
Formation
plain clause + かのようだ（na-adjは である を挟む — 元気であるかのようだ）attaches to plain clause{N}であるかのようだattaches to noun
Variant notes
- かのように — the adverbial gear, and the commonest shape by far — 何も見なかったかのように通り過ぎた.
- かのごとく — the classical ごとし in place of ようだ — speeches, editorials and literary prose; 何事もなかったかのごとく振る舞う.
Notes
counterfactual. Nouns need である before it (子供であるかのように),
where plain ようだ takes の.
Related patterns
Similar
Both fill the simile slot at opposite ends of the register range — みたいだ carries it in speech and never takes か (×死んだかみたいだ), while かのようだ belongs to written narration and description and does not contract at all.
そうだ reads a real appearance off the thing in front of the speaker and predicts it (雨が降りそうだ — it may actually rain); かのようだ describes a resemblance the speaker has already ruled out, so it makes no prediction and cannot be answered with "did it?".
Lookalikes
One か apart, and the か flips the reading — 死んだようだ is an inference the speaker endorses ("he seems to have died"), while 死んだかのようだ quotes the likeness as a proposition and marks it counter to fact ("as if he had died — he hasn't"); ようだ's simile sense survives the swap, its primary inference sense does not.