反
ハン, ホン, タン, ホ, そ.る, そ.らす, かえ.す, かえ.る, かえ.る, そり, た
anti-
JLPT3 G3 S4 F191
The relevant oracle bone form of this character is 又 hand/action indicator + a thin sheet of wood → curve a thin piece of wood back upon itself → *bend back*; *return*; *warp*; *reverse*; *flutter*; *on the contrary*; *anti-* → *rebel*; *disobey*. *Counter for cloth or paddies/fields* is a borrowed meaning.
[Full Kanji Etymology List]