それほどばかげた意見は聞いた事がない。

Sentence Analyzer

それほど ばかげた 意見 聞いた ない

English Translation

That's the most absurd idea I've ever heard.

Furigana

それほどばかげた意見(いけん)()いた(こと)がない。

Romanji

Sorehodo bakageta iken wa kiita koto ga nai.

Words

それ程 (それほど)
to that degree; extent
馬鹿げる (ばかげる)
to look foolish
意見 (いけん)
opinion; view; comment
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
聞く (きく)
to hear; to listen (e.g. to music); to ask; to enquire; to query; to learn of; to hear about; to follow (advice); to comply with; to smell (esp. incense); to sample fragrance
(こと、こん)
thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
無い (ない)
nonexistent; not being (there); unpossessed; unowned; not had; unique; indicates negation, inexperience, unnecessariness or impossibility; not ...; to not be...; to have not ...

Kanji

Reading: 
Meanings: idea, mind, heart, taste, thought, desire, care, liking
Readings: ケン、 み.る、 み.える、 み.せる
Meanings: see, hopes, chances, idea, opinion, look at, visible
Readings: ブン、 モン、 き.く、 き.こえる
Meanings: hear, ask, listen
Readings: ジ、 ズ、 こと、 つか.う、 つか.える
Meanings: matter, thing, fact, business, reason, possibly