Your dress is unsuitable for the occasion. ✬

Your speech was appropriate for the occasion. ✬

T-shirts and jeans are not suitable for this occasion. ✬

This is a special occasion. ✬

We see them on occasion. ✬

I bought this suit just for this occasion. ✬

His story wasn't appropriate for the occasion. ✬

I looked in my closet for something to wear, but couldn't find anything appropriate for the occasion. ✬

Tom didn't think what Mary was wearing was appropriate for the occasion. ✬

Tom thought Mary's dress wasn't appropriate for the occasion. ✬