Astringent, a. Binding, contracting, styptic.
Astute, a. 1. Cunning, crafty, intriguing, wily, artful, sly, subtle, arch, deep, Machiavelian.
2. Shrewd, sagacious, acute, sharp, quick, discerning, ingenious, perspicacious, keen, intelligent, long-headed, keen-sighted, clear-sighted, quick-sighted, eagle-eyed.
Astuteness, n. 1. Cunning, craft, craftiness, subtlety, artfulness, art, artifice, slyness, deceit, duplicity, wiliness, guile.
2. Shrewdness, acuteness, sharpness, perspicacity, discernment, penetration, sagacity, ingenuity, mother-wit, quick parts.
Asunder, ad. Apart, into two parts.
Asylum, n. 1. Sanctuary, shelter, retreat, refuge, place of refuge.
2. Charitable institution.
At a blow, Suddenly, all at once, by a single stroke, by one effort.
At all, In any manner, in any degree, in the least degree, in the least.
At all events, At any rate, in any case, whatever be the case, happen what may, come what may, let it be as it will, sink or swim.
At a loss, Puzzled, perplexed, embarrassed, staggered, posed, nonplussed, at one's wits' end, hard pressed, at a stand, in doubt, in difficulty, put to it, put to one's shifts, out of one's depth, beyond one's depth, in a quandary, at fault, in a dilemma, not know what to do.
At any rate, At all events.
At a pinch, In an emergency, in a difficulty, if things come to the worst.
At a stand, 1. Interrupted, stopped.
2. Perplexed, embarrassed, at a loss.
At dawn, Early, at break of day, at peep of day, at the opening of day.
At discretion, Without conditions or stipulations.
At ease, Untroubled, comfortable, free from pain, at rest.
At fault, 1. Off the scent, on the wrong track.
2. Puzzled, perplexed, at a loss.
At first, In the beginning, at the commencement, in the outset, at the start.
At hand, Near, nigh, close by, hard by, close to, close upon, close at hand, within reach.
At hazard, Hazarded, at stake.
At heart, In principle, in one's true character.
Atheism, n. Denial of God, disbelief in the existence of God.
Atheist, n. Unbeliever (in the existence of God), infidel, sceptic, free-thinker.
Atheistic, a. Godless, given to atheism.
Atheistical, a. Godless, given to atheism.
Athlete, n. Combatant, champion, contender for victory.
Athletic, a. 1. Strong, stout, robust, sturdy, brawny, muscular, lusty, sinewy, nervous, stalwart, powerful, strapping, Herculean, able-bodied, made of iron.