Decline

debilitation, decay, decaying, declension, degeneration, descent, deterioration, ebbing, enfeeblement, weakening

atrophy; exhaustion; drooping, flagging, limping; regression, relapse, setback

invigoration, strengthening; progress; rejuvenation, rejuvenescence

decadence, declension, declination, degeneracy, degeneration, degradation, dégringolade, descent, deterioration, devolution, downfall, downgrade, ebb, eclipse, fall

dark age, nadir, sunset; decay, rotting, spoiling; breakup, crumbling, decomposition, disintegration, dissolution; abasement, debasement; depreciation, lessening; decimation, demolishment, demolition, desolation, destruction, havoc, ruin, ruination; abatement, decrease, decrement, de-escalation, deflation, diminishment, diminution, dip, downslide, downtrend, downturn, drop, drop-off, falloff, loss, lowering, reduction, sag, shrinkage, slip, slump

advancement, development, evolution, growth; blossoming, flourishing, flowering; renewal, restoration, revitalization; heightening; accretion, accrual, addendum, addition, augmentation, boost, enhancement, gain, increase, increment, raise, supplement

declension, declivity, descent, dip, downgrade, downhill, fall, hang, hanging

basin, depression, hollow

glacis, grade, gradient, hill, inclination, incline, lean, pitch, rake, tilt

decline, dégringolade, demise, descent, down, downfall, fall, flameout, Götterdämmerung

breakdown, burnout, collapse, crash, meltdown, ruin, undoing; defeat, disappointment, reversal, setback; bottom, nadir; abasement, disgrace, humiliation

advance, headway, progress; flower, heyday, prime

abatement, decline, decrement, dent, depletion, depression, diminishment, diminution, drop, drop-off, fall, falloff, loss, reduction, shrinkage, step-down

deduction, subtraction; downturn, slip, slump; curtailment, cut, cutback, retrenchment, shortening

accretion, accrual, accumulation, addition, supplement; continuation, extension; upswing, uptrend, upturn

balk (at), deselect, disapprove, negative, nix, pass, pass up, refuse, reject, reprobate, repudiate, spurn, throw out, throw over, turn down

blow off, disdain, rebuff, scorn, scout, shoot down; overrule, veto; forbid, prohibit, proscribe; dismiss, ignore; abstain (from), forbear, refrain (from); deny, disavow, disclaim, dispute, gainsay; stick; abjure, forswear ( foreswear), recant, renounce, retract, take back, unsay, withdraw; avoid, bypass, detour; contradict, deny, disown, negate; controvert, disagree (with), disprove, dispute, rebut, refute; back down, back off, backtrack; disallow, recall, renege, revoke

condone, countenance, swallow, tolerate; adopt, embrace, receive, take, welcome; accede, acquiesce, agree, assent, consent; choose, handpick, select; espouse, support

decline, disallow, disapprove, negative, nix, refuse, reject, reprobate, withhold

ban, enjoin, forbid, prohibit, proscribe, veto; rebuff, repel, spurn; check, constrain, curb, hold, keep, repress, restrain, restrict; balk (at), hinder, impede, obstruct

afford, furnish, give, provide, supply; authorize, commission, license ( licence); accede (to), acquiesce, agree (to), assent (to), consent (to), warrant; accord, sanction, vouchsafe

crash, crater, decline, descend, dip, dive, fall, lower, nose-dive, plummet, plunge, sink, skid, tumble

abate, decrease, de-escalate, die (down), diminish, droop, dwindle, ebb, lessen, let up, moderate, subside, taper off, wane; recede, retreat

accumulate, balloon, build, burgeon ( bourgeon), enlarge, escalate, expand, grow, increase, intensify, mushroom, pick up, snowball, swell, wax

atrophy, crumble, decay, decline, degenerate, descend, devolve, ebb, regress, retrograde, rot, sink, worsen

abate, de-escalate, diminish, downsize, dwindle, recede, wane; break down, corrupt, decompose, degrade, dilapidate, disintegrate, molder, putrefy; sour, spoil; lessen, lower, reduce; debilitate, undermine; droop, fail, fall, flag, lag, languish, run down, sag, slip, waste (away), weaken, wilt

better, upgrade; enhance, enrich, fortify, heighten, intensify, strengthen; advance, develop, march, proceed, progress

abate, decline, de-escalate, die (away down out), diminish, drain (away), drop (off), dwindle, ease, ebb, fall, fall away, lessen, let up, lower, moderate, pall, phase down, ratchet (down) rachet (down), recede, relent, remit, shrink, subside, taper, taper off, wane

compress, condense, constrict, contract; evaporate, fade (away), fritter (away), give out, melt (away), peter (out), tail (off), vanish; slacken, slow (down); alleviate, relax; flag, sink, weaken; cave (in), collapse, deflate

appear, emerge, show up; blow up, distend, elongate, lengthen

decline, dip, drop, fall, plunge, sink

angle, cant, cock, heel, incline, lean, list, recline, slant, slope, tilt, tip

even, flatten, level, plane, smooth, straighten