不用意な言葉は大きな災いのもとになるであろう。

Sentence Analyzer

不用意な 言葉 大きな 災い もと なる あろう

English Translation

Thoughtless speech may give rise to great mischief.

Furigana

不用意(ふようい)言葉(ことば)(おお)きな(わざわ)いのもとになるであろう。

Romanji

Fuyōina kotoba wa ōkina wazawai no moto ni naru de arou.

Words

不用意 (ふようい)
unpreparedness; carelessness
言葉 (ことば、けとば)
language; dialect; word; words; phrase; term; expression; remark; speech; (manner of) speaking
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
大きな (おおきな)
big; large; great
災い (わざわい)
calamity; catastrophe; misfortune
()
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
(もと)
origin; source; base; basis; foundation; root; cause; ingredient; material; (somebody's) side; (somebody's) location; original cost (or capital, principal, etc.); (plant) root; (tree) trunk; first section of a waka; counter for blades of grass, tree trunks, etc., and for falcons (in falconry); handle (chopsticks, brush, etc.); grip
()
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
成る (なる)
to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...
()
be; is; indicates past or completed action; indicates light imperative
(ある)
a certain ...; some ...

Kanji

Readings: フ、 ブ
Meanings: negative, non-, bad, ugly, clumsy
Readings: ヨウ、 もち.いる
Meanings: utilize, business, service, use, employ
Reading: 
Meanings: idea, mind, heart, taste, thought, desire, care, liking
Readings: ゲン、 ゴン、 い.う、 こと
Meanings: say, word
Readings: ヨウ、 は
Meanings: leaf, plane, lobe, needle, blade, spear, counter for flat things, fragment, piece
Readings: ダイ、 タイ、 おお-、 おお.きい、 -おお.いに
Meanings: large, big
Readings: サイ、 わざわ.い
Meanings: disaster, calamity, woe, curse, evil