気分が優れないので、今日はお会いできません。

I can't see you today because I feel ill.

気分(きぶん)が優(すぐ)れないので、今日(きょう)はお会(あ)いできません。

Kibun ga sugurenai node, kyō wa o aidekimasen.

気分 (きぶん)

feeling; mood

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

優れる (すぐれる)

to surpass; to outstrip; to excel

ので (ので、んで)

that being the case; because of ...; the reason is ....; given that...

今日 (きょう、こんにち、こんち、こんじつ)

today; this day; these days; recently; nowadays

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

御 (お、おん)

honorific/polite/humble prefix

会う (あう)

to meet; to encounter; to see; to have an accident; to have a bad experience

Readings: キ、ケ、いき

Meanings: spirit, mind, air, atmosphere, mood

Readings: ブン、フン、ブ、わ.ける、わ.け、わ.かれる、わ.かる、わ.かつ

Meanings: part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100

Readings: ユウ、ウ、やさ.しい、すぐ.れる、まさ.る

Meanings: tenderness, excel, surpass, actor, superiority, gentleness

Readings: コン、キン、いま

Meaning: now

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: カイ、エ、あ.う、あ.わせる、あつ.まる

Meanings: meeting, meet, party, association, interview, join