| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | failing in physical and mental capabilities due to old age |
| Synonyms: | aged, ancient, anile, decrepit, doddering, doting, enfeebled, feeble, imbecile, in second childhood, infirm, old, senescent, shattered, sick, weak |
| Antonyms: | alert, well, young |
| Main Entry: | doddering |
| Part of Speech: | adjective |
| Definition: | aged, feeble |
| Synonyms: | anile, decrepit, dotard, faltering, floundering, infirm, senile, shaky, tottering, trembling, unsteady, weak |
| Antonyms: | agile, young, youthful |
| Main Entry: | old |
| Part of Speech: | adjective |
| Definition: | advanced in age |
| Synonyms: | aged, along in years, ancient, broken down, debilitated, decrepit, elderly, enfeebled, exhausted, experienced, fossil, geriatric, getting on, gray, gray-haired, grizzled, hoary*, impaired, inactive, infirm, mature, matured, not young, olden, oldish, over the hill, past one's prime, seasoned, senile, senior, skilled, superannuated, tired, venerable, versed, veteran, wasted* |
| Antonyms: | fresh, new, young, youthful |
| Main Entry: | slaphappy |
| Part of Speech: | adjective |
| Definition: | dazed |
| Synonyms: | befuddled, bewildered, dazzled, gaga, giddy, groggy, hazy, punch-drunk, punchy, puzzled, senile, silly, staggered, staggering, tipsy, unsteady, weak in the knees, weak-kneed, wobbly, woozy |
| Main Entry: | weak |
| Part of Speech: | adjective |
| Definition: | not strong |
| Synonyms: | anemic, debilitated, decrepit, delicate, effete, enervated, exhausted, faint, feeble, flaccid, flimsy, forceless, fragile, frail, hesitant, impuissant, infirm, insubstantial, irresolute, lackadaisical*, languid, languorous, limp, makeshift, out of gas, powerless, prostrate, puny, rickety, rocky, rotten, senile, shaky, sickly, sluggish, spent, spindly, supine, tender, torpid, uncertain, undependable, unsound, unsteady, unsubstantial, wasted, wavering, weakened, weakly, wobbly |
| Antonyms: | firm, potent, strong |
| Main Entry: | superannuated |
| Part of Speech: | adjective |
| Definition: | very old |
| Synonyms: | aged, antiquated, obsolete, outdated, passe, senile |