on the contrary; instead
反 (fǎn) · 4 strokes
Pictograph of a hand (又) climbing a cliff (厂). Based on original meaning "climb", now written as 扳. The meaning later shifted to "pull" and "reverse".
而 (ér) · 6 strokes
Originally a pictograph of a beard, now written as 耏. The current use as a conjunction is a phonetic loan.