This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of, relating to, or characteristic of old age.

adj. Relating to or exhibiting memory loss or mental impairment associated with aging.

adj. Geology Worn away nearly to the base level, as at the end of an erosion cycle.

adj. Of, or relating to old age.

adj. Exhibiting the deterioration in mind and body often accompanying old age; doddering.

adj. Of or pertaining to old age; proceeding from, or characteristic of, old age; affected with the infirmities of old age.

Of, pertaining to, or characteristic of old age; proceeding from age; especially, pertaining to or proceeding from the weaknesses that usually attend old age: as, senile garrulity; senile petulance.

In physical geography, exhibiting features of old age in the geographical cycle: said of worn-flown land-forms.

adj. mentally or physically infirm with age

"For John McCain to think that "losing one's bearings" impys "is old and senile" is totally incorrect."

old   

senile tremor    senile dementia    senile involution    senile bronchitis    senile atrophy of bones    senile atrophy    senile cataract   

senility    senescence    seniority    senator    senior    senate   

senile dementia   

old    imbecile   

insane    uncontrollable    impotent    toothless    womanish    infirm    deaf    maniacal    pointless    suicidal