は・・・、若かったとはいえ、しょうもない凡ミスだ。

Sentence Analyzer

若かった いえ しょうもない みす

English Translation

Ahh ... well I was young but what a stupid mistake.

Furigana

は・・・、(わか)かったとはいえ、しょうもない()ミスだ。

Romanji

Wa, wakakatta to wa ie, shōmonai misu da.

Words

()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
(なかぽち)
middle dot (typographical symbol used between parallel terms, names in katakana, etc.); full-stop mark at mid-character height; interpoint (interword separation)
若い (わかい)
young; youthful; immature; green; low (number); small
()
if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)
結う (ゆう、いう)
to do up (hair); to braid; to fasten; to fix
しようも無い (しようもない、しょうもない)
useless; stupid; good-for-nothing; having no way to do ...
(ぼん)
mediocrity
ミス (ミス)
mistake; error; failure; Miss; myth
()
be; is; indicates past or completed action; indicates light imperative

Kanji

Readings: ジャク、 ニャク、 ニャ、 わか.い、 わか-、 も.しくわ、 も.し、 も.しくは、 ごと.し
Meanings: young, if, perhaps, possibly, low number, immature
Readings: ボン、 ハン、 およ.そ、 おうよ.そ、 すべ.て
Meanings: commonplace, ordinary, mediocre