dilute

1 not containing very much of some important element a dilute acid that's safe to handle in the classroom Synonyms weak, diluted, thin, thinned, washy, watery, weakenedRelated Words adulterated, watered-downNear Antonyms enriched, fortified; concentrated, condensed, evaporatedAntonyms full-bodied, rich, strong

2 containing foreign or lower-grade substances a dilute solution of ammonia Synonyms adulterate, adulterated, alloyed, contaminated, impure, diluted, polluted, tainted, thinned, weakenedRelated Words unclarified, unfiltered, unrefined; befouled, begrimed, bemired, besmirched, corrupted, debased, defiled, dirtied, fouled, maculate (or maculated), soiled, spoiled, sullied; blended, commingled, incorporated, intermingled, intermixed, merged, mingled, mixed; coalesced, combined, compounded; cheapened, doctoredNear Antonyms clarified, filtered, purified, refined, ultrarefined; neat, plain, straight; concentrated, strong; uncombined; pasteurized; sterile, sterilized; clean, immaculate, spotless, stainless, unsoiled, unsulliedAntonyms fine, pure, ultrapure, unadulterated, unalloyed, uncontaminated, uncut, undiluted, unmixed, unpolluted, untainted