ドアに鍵をかけておかなかったなんて君は不注意だったよ。

Sentence Analyzer

ドア かけて おかなかった なんて 不注意 だった

English Translation

It was careless of you to leave the door unlocked.

Furigana

ドアに(かぎ)をかけておかなかったなんて(きみ)不注意(ふちゅうい)だったよ。

Romanji

Doa ni kagi o kakete okanakatta nante kimi wa fuchūi datta yo.

Words

ドア (ドア)
door (Western-style)
()
at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
(かぎ、カギ)
key; lock
()
indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
掛ける (かける)
to hang (e.g. picture); to hoist (e.g. sail); to raise (e.g. flag); to sit; to take (time, money); to expend (money, time, etc.); to make (a call); to multiply; to secure (e.g. lock); to put on (glasses, etc.); to cover; to burden someone; to apply (insurance); to turn on (an engine, etc.); to set (a dial, an alarm clock, etc.); to put an effect (spell, anaesthetic, etc.) on; to hold an emotion for (pity, hope, etc.); to bind; to pour (or sprinkle, spray, etc.) onto; to argue (in court); to deliberate (in a meeting); to present (e.g. idea to a conference, etc.); to increase further; to catch (in a trap, etc.); to set atop; to erect (a makeshift building); to hold (a play, festival, etc.); to wager; to bet; to risk; to stake; to gamble; to be partway doing ...; to begin (but not complete) ...; to be about to ...; indicates (verb) is being directed to (someone)
置く (おく)
to put; to place; to leave (behind); to establish (an organization, a facility, a position, etc.); to set up; to appoint (someone to a certain position); to hire; to employ; to place (one's trust, one's faith, etc); to bear (in mind etc); to put down a tool (e.g. a pen) hence stopping what one is doing with that tool; to take in (boarders, etc.); to provide lodging in one's house; to separate spatially or temporally; to do something in advance; to leave something in a certain state; to keep something in a certain state
なんて (なんて)
such as; (things) like; exclamation
(きみ)
you; buddy; pal; monarch; ruler; sovereign; (one's) master
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
不注意 (ふちゅうい)
carelessness; inattention; thoughtlessness
()
be; is; indicates past or completed action; indicates light imperative
()
indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

Kanji

Readings: ケン、 かぎ
Meaning: key
Readings: クン、 きみ、 -ぎみ
Meanings: mister, you, ruler, male name suffix
Readings: フ、 ブ
Meanings: negative, non-, bad, ugly, clumsy
Readings: チュウ、 そそ.ぐ、 さ.す、 つ.ぐ
Meanings: pour, irrigate, shed (tears), flow into, concentrate on, notes, comment, annotate
Reading: 
Meanings: idea, mind, heart, taste, thought, desire, care, liking