[n] a downward slope or bend
[n] a gradual decrease; as of stored charge or current
[n] change toward something smaller or lower
[n] a condition inferior to an earlier condition; a gradual falling off from a better state
[v] grow worse; "Conditions in the slum worsened"
[v] grow smaller; "Interest in the project waned"
[v] show unwillingness towards
[v] of nouns, pronouns, and adjectives
[v] go down
[v] refuse to accept; "He refused my offer of hospitality"
decay, declension, declination, declination, declivity, descent, diminution, downslope, fall, go down, pass up, refuse, refuse, reject, turn down, wane, worsen
accept, accept, acclivity, ameliorate, ascent, better, climb, consent, go for, have, improve, improvement, meliorate, melioration, raise, rise, take, upgrade