Readings & Meanings:
change, abnormal, strange
She's a different person than the girl (I knew) two years before.
The Edo inventor Hiraga Gennai was treated as a weirdo.
Along a dark road at night, be careful of degenerates, and if anything happens report it to the police.
After her husband's death, that woman has had a hard time raising her children on her own.
Suinyou (夊) down below is the radical. This was originally a pictograph of a dragging foot.
A note from KN: 夊 is often assumed to be the same as 夂, but they're different characters. Unfortunately, in combination with other kanji, 夊 often takes the form of 夂, leading to more confusion. Just memorize 変 as dragging a foot.
What's that on top? A simplified 赤, right? WRONG. But you were right about the simplification.
変 was originally 變. 糸 on both sides of 言. This represents a tangled situation. Tangled indeed.