dizzy giddy vertiginous weak wobbly woozy exhausted unsteady fatigued reeling shaky wooly(US) woolly(UK) drooping enervated faltering lightheaded muzzy trembly dopey feeble languid asthenic debilitated effete enfeebled frail infirm prostrate prostrated sapped unsubstantial wasted weakened slight down-and-out delicate quiet soft inaudible muffled stifled hushed muted subdued whispered bated deadened murmured murmuring softened diminished distant gentle unclear hard to hear hard to make out subtle low diffuse dim dimmed diffused mellow shaded tinted glimmering dull glowing faded shimmering mild indefinite indistinct obscure vague pale blear bleary blurry foggy fuzzy gauzy hazy imperceptible indistinguishable misty murky nebulous opaque small negligible tiny minute fine indiscernible minimal minuscule infinitesimal insignificant microscopic inconsiderable slender undistinguishable vestigial teeny-weeny teensy-weensy unlikely improbable remote doubtful dubious fanciful iffy implausible inconceivable slim exiguous outside poor unbelievable unimaginable unthinkable flimsy lame timorous unconvincing unenthusiastic fragile meagre(UK) meager(US) spiritless timid moderate pathetic tame tenuous inconspicuous unobtrusive discreet unostentatious modest unnoticeable unassuming retiring invisible unseen unimposing hidden unspectacular backstage secretive funny unwell sick ill nauseated nauseous unhealthy poorly feverish impaired under the weather queasy indisposed peaky bad crook light caressing pleasing restful calm genial temperate balmy zephyr-like bland cool equable benign agreeable clement tired weary spent drained sleepy drowsy knackered wearied bushed done overtired flagging jet-lagged pooped tired out whacked unreadable illegible indecipherable crabbed scrawled scribbled undecipherable hieroglyphic unintelligible squiggly cacographic hard to read untidy clear as mud difficult to read languorous lackadaisical languishing limp listless apathetic blah blahs comatose dreamy easy energyless heavy impassive dreamlike chimerical fantastic unreal imaginary visionary illusory hallucinatory ghostly phantasmagoric shadowy ghostlike ethereal illusive surreal nightmarish psychedelic otherworldly half-hearted indifferent uninterested perfunctory superficial unconcerned lukewarm cursory passive desultory failing defeated wanting unprosperous unsuccessful unavailing unthriving not well sickly ailing unsound decrepit weakly cowardly fearful gutless chicken yellow wimpish scared cowering frightened mousy afraid quaking mousey sissy tremulous recreant trembling skittish apprehensive blackout swoon collapse syncope coma knockout unconsciousness insensibility dizziness fainting fit grayout stupor swim vertigo loss of consciousness fainting oblivion passing out temporary unconsciousness period of oblivion black out pass out fall unconscious lose consciousness become unconscious conk out flake out go out go out like a light go out like light be overcome zonk out go under keel over drop zone out break down fall slump tumble buckle crumble crumple flop founder fall down turn over tip pitch upturn languish fade flag weaken decline decay wilt wither fail sink deteriorate droop dwindle diminish sag ebb lag emaciate go rot whiten blanch bleach blench decolorize lighten snow soften etiolate evanish tarnish discolour(UK) discolor(US) wash out become pale go white go pale tire(US) exhaust fatigue drain frazzle wear break bust outwear harass kill tax overtire jade overtax poop knacker shatter bush quail flinch cower cringe recoil shrink falter start waver grovel shy squinch wince back away draw back get cold feet pull back conk die decease hit knock stall straighten swat More