Synonyms and related words :
apt, bright, clever, docile, educable, facile, formable, homely, humble, humble-looking, humble-visaged, humblest, impressionable, inglorious, innocuous, instructable, intelligent, least, low, lowest, lowliest, lowly, malleable, mean, modest, moldable, motivated, plain, plastic, pliable, poor, quick, ready, receptive, ripe for instruction, schoolable, simple, small, susceptible, thirsty for knowledge, trainable, undistinguished, unimportant, unpretentious, willing