B3I1T1T1E1R1
8 points
BITTER is validvalid
having a disagreeable taste [adj BITTERER, BITTEREST] : BITTERLY [adv], BITTERNESS [n] / to make bitter [v BITTERED, BITTERING, BITTERS]
having a disagreeable taste [adj BITTERER, BITTEREST, BITTERLY] / to make resentful [v -ED, -ING, -S]