Sickly
Part of speech: adjective
Definition: Frequently ill; often in poor health; given to becoming ill. Having the appearance of sickness or ill health; appearing ill, infirm or unhealthy; pale. Weak; faint; suggesting unhappiness.
Sallow
Part of speech: adjective
Definition: Having a grayish, yellow-green huedirty, murky
Part of speech: noun
Definition: A European willow, Salix caprea, that has broad leaves, large catkins and tough wood.