1) Added water to 2) Dilute 3) Made weak 4) Mixed with water 5) Not at full strength 6) Not so strong 7) Reduced strength 8) Thinned 9) Washy 10) Watered down 11) Watery 12) Weak 13) Weakened 14) Weakened with water 15) White Found on https://www.crosswordclues.com/clue/diluted
diluteadjective reduced in strength or concentration or quality or purity; `diluted alcohol`; `a dilute solution`; `dilute acetic acid` Found on https://www.encyclo.co.uk/local/20974