You might remember the meaning of the character 嫌 with this easy mnemonic:
My parents dislike every woman (女) I've ever brought home. Once they didn't like her eyebrows (丷), another time they said her nose looked like a pig's snout (彐), and just yesterday, they rejected a girl because she doesn't eat grains (禾)!
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.