1) Anaemic friend takes cover 2) Ashen 3) Ashen-faced 4) Ashy 5) Ashy-faced 6) Colorless 7) Colourless 8) Dim or feeble 9) Doughy 10) Drained of colour 11) Fair 12) Grey 13) Lacking liveliness 14) Not too hale-looking 15) Opposite of ruddy 16) Pale 17) Pasty 18) Pasty white 19) Sallow 20) Sans a healthy glow Found on https://www.crosswordclues.com/clue/pallid
Pal'lid adjective [ Latin pallidus , from pallere to be or look pale. See pale , adjective ] Deficient in color; pale; wan; as, a pallid countenance; pallid blue. Spenser. Found on http://www.encyclo.co.uk/webster/P/8