undiluted

diminish, dilution, weaken, undermine, erode, sully, depress, complicate, cheapen, undercut, taint, tarnish, heighten, negate, curtail, hamper, lessen, enhance, homogenize, dampen, exacerbate, restrict, impair, jeopardize, hinder, marginalize, detract, entrench, saturate, alienate, appease, adulterate, cannibalize, amplify, strengthen, sweeten, bolster, understate, magnify, infuse, alter, deprive, circumscribe, crystalise, assuage, add, vitiate, distort, homogenise, politicize, reduce, augment, contaminate, undervalue, scupper, aggravate, deplete, overshadow, impede, agitate, elevate, scuttle, overwhelm, deepen, mollify, constrain, inflame, backfire, overstate, ghettoize, subsume, crystallize, downplay, inject, allay, broaden, devalue, inhibit, soothe, neutralize, disrupt, placate, legitimize, usurp, reinforce, antagonize, constrict, inflate, confuse, retain, overcrowd, affect, ghettoise, undersell, oversubscribe, boost, imperil, destabilize, convolute, polarize, irritate, spoil, aqueous, arid, alkali, caustic, chlorine, cloudy, liquid, positive, un, admits, ammonia, c.c., con, ex, heavy, inner, outgoing, pre, saline, tender, diluted, acidified, concentrated, undiluted, supersaturated, acidulated, ammoniacal, supernatant, anhydrous, supercooled, hydrochloric, unbuffered, buffered, nonaqueous, saturated, turbid, distilled, unpurified

water down

acetum, battery acid, diabetes insipidus, electrolyte acid, lead-acid accumulator, lead-acid battery, polyuria, vinegar

thin, weaken

adulterate, cut, debase, diluted, reduce, stretch, thin, thin out, thinned, washy, water down, watery, weak, weakened, white