結構けっこう
kekkō

na-Adjective

1. splendid; nice; wonderful; delightful; lovely; excellent; fine

好奇こうきしんがお旺盛おうせいなのは大変たいへん結構けっこうなことである。
kōkishinga ōosēna nowa taihenni kekkōna kotodearu.
A healthy curiosity is truly a fine thing.
na-Adjective

2. sufficient; satisfactory; enough; fine; all right; OK

どちらのでも結構けっこうです。
dochirano hidemo kekkōdesu.
Either day is OK.
na-Adjective

3. not needing (any more of something); (already) having enough; fine (as in "I'm fine"); no, thank you

いや結構けっこうです。たくさんいただきました。
iya kekkōdesu. takusan itadakimashita.
No more, thank you. I'm full.
Adverb

4. rather; quite; fairly; pretty; surprisingly; quite a bit; fairly well

彼女かのじょかみ結構けっこうみじかい。
kanojono kaminokewa kekkō mijikai.
The woman's hair is quite short.
Noun

5. structure; construction; framework; architecture