Variable and Weak

variable

noun

Something that is likely to vary; something that is subject to variation.
- usage: "the weather is one variable to be considered"
A quantity that can assume any of a set of values.
- synonyms: variable quantity
A star that varies noticeably in brightness.
- synonyms: variable star
A symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity.

adjective

Liable to or capable of change.
- usage: "rainfall in the tropics is notoriously variable"; "variable winds"; "variable expenses"
Marked by diversity or difference.
- usage: "the varying angles of roof slope"; "nature is infinitely variable"
- synonyms: varying
Used of a device) designed so that a property (as e. G. Light) can be varied. (
- usage: "a variable capacitor"; "variable filters in front of the mercury xenon lights"

(n.) Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts.
(n.) That which is variable; that which varies or is subject to change.
(a.) Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
(n.) A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables.
(a.) Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
(n.) A shifting wind or one that varies in force.

Webster's Revised Unabridged Dictionary

Variable is an element in a model. For example, in the model RS&Pt+1 = a + b Tbill t + et, where RS&Pt+1 is the return on the S&P in month t+1 and Tbill is the Tbill return at month t, both RS&P and Tbill are "variables" because they change through time; i. E., they are not constant.

weak

adjective

Wanting in physical strength.
- usage: "a weak pillar"
Overly diluted; thin and insipid.
- usage: "washy coffee"; "watery milk"; "weak tea"
- synonyms: watery, washy
Used of vowels or syllables. ( pronounced with little or no stress)
- usage: "a syllable that ends in a short vowel is a light syllable"; "a weak stress on the second syllable"
- synonyms: unaccented, light
Wanting in moral strength, courage, or will; having the attributes of man as opposed to e. G. Divine beings.
- usage: "I'm only a fallible human"; "frail humanity"
- synonyms: fallible, frail, imperfect
Tending downward in price.
- usage: "a weak market for oil stocks"
Deficient or lacking in some skill.
- usage: "he's weak in spelling"
Lacking bodily or muscular strength or vitality.
- usage: "a feeble old woman"; "her body looked sapless"
- synonyms: decrepit, debile, feeble, infirm, rickety, sapless, weakly
Used of verbs) having standard (or regular) inflection. (
Not having authority, political strength, or governing power.
- usage: "a weak president"
Deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc.
- usage: "a faint outline"; "the wan sun cast faint shadows"; "the faint light of a distant candle"; "weak colors"; "a faint hissing sound"; "a faint aroma"; "a weak pulse"
- synonyms: faint
Likely to fail under stress or pressure.
- usage: "the weak link in the chain"
Deficient in intelligence or mental power.
- usage: "a weak mind"

(a.) Tending toward a lower price or lower prices; as, wheat is weak; a weak market.
(a.) Lacking in good cards; deficient as to number or strength; as, a hand weak in trumps.
(a.) Lacking contrast; as, a weak negative.
(v.i.) Not thoroughly or abundantly impregnated with the usual or required ingredients or with stimulating and nourishing substances; of less than the usual strength; as, weak tea, broth or liquor; a weak decoction or solution; a weak dose of medicine.
(v.i.) Pertaining to or designating, a noun in Anglo-Saxon, etc., the stem of which ends in -n. See Strong, 19 (b).
(v.i.) Not firmly united or adhesive; easily broken or separated into pieces; not compact; as, a weak ship.
(v.i.) Lacking force of utterance or sound; not sonorous; low; small; feeble; faint.
(v.i.) Not having power to convince; not supported by force of reason or truth; unsustained; as, a weak argument or case.
(v.i.) Not able to sustain a great weight, pressure or strain; as, a weak timber; a weak rope.
(v.i.) Wanting physical strength.
(v.i.) Not able to withstand temptation, urgency, persuasion, etc.; easily impressed, moved or overcome; accessible; vulnerable; as, weak resolutions; weak virtue.
(v.i.) Wanting in power to influence or bind; as, weak ties; a weak sense of honor of duty.
(v.i.) Not able to resist external force or onset; easily subdued or overcome; as, a weak barrier; as, a weak fortress.
(v.i.) Not possessing or manifesting intellectual, logical, moral or political strength, vigor, etc.
(v.i.) Wanting in point or vigor of expression; as, a weak sentence; a weak style.
(v.i.) Pertaining to or designating, a verb which forms its preterit (imperfect) and past participle by adding to the present the suffix -ed, -d or the variant form -t; as in the verbs abash, abashed; abate, abated; deny, denied; feel, felt. See Strong, 19 (a).
(v.i.) Lacking ability for an appropriate function or office; as, weak eyes; a weak stomach; a weak magistrate; a weak regiment or army.
(v.i.) Not stiff; pliant; frail; soft; as, the weak stalk of a plant.
(v.i.) Not prevalent or effective or not felt to be prevalent; not potent; feeble.
(v.i.) Not having full confidence or conviction; not decided or confirmed; vacillating; wavering.
(v.i.) Resulting from or indicating, lack of judgment, discernment or firmness; unwise; hence, foolish.
(v.i.) Deficient in strength of body; feeble; infirm; sickly; debilitated; enfeebled; exhausted.
(v.i.) Tending towards lower prices; as, a weak market.
(v.i.) Lacking in elements of political strength; not wielding or having authority or energy; deficient in the resources that are essential to a ruler or nation; as, a weak monarch; a weak government or state.
(v.i.) Feeble of mind; wanting discernment; lacking vigor; spiritless; as, a weak king or magistrate.
(a.) To make or become weak; to weaken.

Webster's Revised Unabridged Dictionary

Variable and Weak in Power Thesaurus