Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Lacking physical strength, energy, or vigor; feeble.
  • adj. Likely to fail under pressure, stress, or strain; lacking resistance: a weak link in a chain.
  • adj. Lacking firmness of character or strength of will.
  • adj. Lacking the proper strength or amount of ingredients: weak coffee.
  • adj. Lacking the ability to function normally or fully: a weak heart.
  • adj. Lacking aptitude or skill: a weak student; weak in math.
  • adj. Lacking or resulting from a lack of intelligence.
  • adj. Lacking persuasiveness; unconvincing: a weak argument.
  • adj. Lacking authority or the power to govern.
  • adj. Lacking potency or intensity: weak sunlight.
  • adj. Linguistics Of, relating to, or being those verbs in Germanic languages that form a past tense and past participle by means of a dental suffix, as start, started; have, had; bring, brought.
  • adj. Linguistics Of, relating to, or being the inflection of nouns or adjectives in Germanic languages with a declensional suffix that historically contained an n.
  • adj. Unstressed or unaccented in pronunciation or poetic meter. Used of a word or syllable.
  • adj. Designating a verse ending in which the metrical stress falls on a word or syllable that is unstressed in normal speech, such as a preposition.
  • adj. Tending downward in price: a weak market for oil stocks.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Lacking in force (usually strength) or ability.
  • adj. Dilute, lacking in taste or potency.
  • adj. Displaying a particular kind of inflection, including:
  • adj. One of the four fundamental forces associated with nuclear decay.
  • adj. Bad or uncool.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Wanting physical strength.
  • adj. Deficient in strength of body; feeble; infirm; sickly; debilitated; enfeebled; exhausted.
  • adj. Not able to sustain a great weight, pressure, or strain.
  • adj. Not firmly united or adhesive; easily broken or separated into pieces; not compact.
  • adj. Not stiff; pliant; frail; soft.
  • adj. Not able to resist external force or onset; easily subdued or overcome.
  • adj. Lacking force of utterance or sound; not sonorous; low; small; feeble; faint.
  • adj. Not thoroughly or abundantly impregnated with the usual or required ingredients, or with stimulating and nourishing substances; of less than the usual strength.
  • adj. Lacking ability for an appropriate function or office.
  • adj. Not possessing or manifesting intellectual, logical, moral, or political strength, vigor, etc.
  • adj. Feeble of mind; wanting discernment; lacking vigor; spiritless.
  • adj. Resulting from, or indicating, lack of judgment, discernment, or firmness; unwise; hence, foolish.
  • adj. Not having full confidence or conviction; not decided or confirmed; vacillating; wavering.
  • adj. Not able to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible; vulnerable.
  • adj. Wanting in power to influence or bind.
  • adj. Not having power to convince; not supported by force of reason or truth; unsustained.
  • adj. Wanting in point or vigor of expression.
  • adj. Not prevalent or effective, or not felt to be prevalent; not potent; feeble.
  • adj. 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.
  • adj. Tending towards lower prices.
  • adj.
  • adj. 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).
  • adj. Pertaining to, or designating, a noun in Anglo-Saxon, etc., the stem of which ends in -n. See Strong, 19 (b).
  • adj. Tending toward a lower price or lower prices.
  • adj. Lacking in good cards; deficient as to number or strength.
  • adj. Lacking contrast.
  • v. To make or become weak; to weaken.

from The Century Dictionary and Cyclopedia

  • Bending under pressure, weight, or force; pliant, or pliable; yielding; lacking stiffness or firmness: as, the weak stem of a plant.
  • Lacking strength; not strong.
  • Deficient in bodily strength, vigor, or robustness; feeble, either constitutionally or from age, disease, etc.; infirm; of the organs of the body, deficient in functional energy, activity, or the like: as, a weak stomach; weak eyes.
  • Lacking moral strength or firmness; liable to waver or succumb when urged or tempted; deficient in steady principle or in force of character.
  • Lacking mental power, ability, or balance; simple; silly; foolish.
  • Unequal to a particular need or emergency; ineffectual or inefficacious; inadequate or unsatisfactory; incapable; impotent.
  • Incapable of support; not to be sustained or maintained: unsupported by truth, reason, or justice: as, a weak claim, assertion, argument, etc.
  • Deficient in force of utterance or sound; having little volume, loudness, or sonorousness; low; feeble; small.
  • Not abundantly or sufficiently impregnated with the essential, required, or usual ingredients, or with stimulating or nourishing substances or properties; not of the usual strength: as, weak tea; weak broth; a weak infusion; weak punch.
  • Deficient in pith, pregnancy, or point; lacking in vigor of expression: as, a weak sentence; a weak style.
  • Resulting from or indicating lack of judgment, discernment, or firmness; arising from want of moral courage, of self-denial, or of determination; injudicious: as, a weak compliance; a weak surrender.
  • Slight; inconsiderable; trifling.
  • (I) In grammar, infiected— as a verb, by regular syllabic addition instead of by change of the radical vowel;
  • as a noun or an adjective, with less full or original differences of case-and number-forms: opposed to strong (which see).
  • Poorly supplied; deficient: as, a hand weak in trumps.
  • Tending downward in price: as, a weak market; corn was weak.
  • To make weak; weaken.
  • To soften.
  • To become weak.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. lacking bodily or muscular strength or vitality
  • adj. wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
  • adj. (used of vowels or syllables) pronounced with little or no stress
  • adj. (used of verbs) having standard (or regular) inflection
  • adj. wanting in physical strength
  • adj. deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
  • adj. deficient in intelligence or mental power
  • adj. deficient or lacking in some skill
  • adj. not having authority, political strength, or governing power
  • adj. overly diluted; thin and insipid
  • adj. tending downward in price
  • adj. likely to fail under stress or pressure

Etymologies

Middle English weike, from Old Norse veikr, pliant; see weik-2 in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English weike, from Old Norse veikr "weak," cognate with Old English wīcan "to yield." Proto-Indo-European base *weik- "to bend, wind". Replaced the native Old English wāc. Cf. German weich, Dutch week. (Wiktionary)

Examples

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