Synonyms of the word

infirm

• adj. Weak or ill, not in good health.
• adj. Irresolute; weak of mind or will.
• adj. Frail; unstable; insecure.
• v. To contradict, to provide proof that something is not.

debile

• adj. (obsolete) Weak.

decrepit

• adj. Weakened or worn out from age or wear.

feeble

• adj. Deficient in physical strength; weak; infirm; debilitated.
• adj. Lacking force, vigor, or efficiency in action or expression; faint.
• v. (obsolete) To make feeble; to enfeeble.

frail

• adj. Easily broken; mentally or physically fragile; not firm or durable; liable to fail and perish; easily…
• adj. Liable to fall from virtue or be led into sin; not strong against temptation; weak in resolution; unchaste.
• n. A basket made of rushes, used chiefly for containing figs and raisins.
• n. The quantity of raisins contained in a frail.
• n. A rush for weaving baskets.
• n. (dated, slang) A girl.
• v. To play a stringed instrument, usually a banjo, by picking with the back of a fingernail.

irresolute

• adj. Undecided or unsure how to act.
• adj. Indecisive or lacking in resolution.

rickety

• adj. Of an object: not strong or sturdy, as because of poor construction or upkeep; not safe or secure; giddy;…
• adj. Of a person: feeble in the joints; tottering.
• adj. Affected with or suffering from rickets.

sapless

• adj. (of a plant) Lacking in sap.
• adj. (figuratively, of a person etc.) Lacking vivacity.

weak

• adj. Lacking in force (usually strength) or ability.
• adj. Unable to sustain a great weight, pressure, or strain.
• adj. Unable to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible;…
• adj. Dilute, lacking in taste or potency.
• adj. (grammar) Displaying a particular kind of inflection, including.
• adj. (chemistry) That does not ionize completely into anions and cations in a solution.
• adj. (physics) One of the four fundamental forces associated with nuclear decay.
• adj. (slang) Bad or uncool.
• adj. (mathematics, logic) Having a narrow range of logical consequences; narrowly applicable. (Often contrasted…
• adj. Resulting from, or indicating, lack of judgment, discernment, or firmness; unwise; hence, foolish.
• adj. Not having power to convince; not supported by force of reason or truth; unsustained.
• adj. Lacking in vigour or expression.
• adj. Not prevalent or effective, or not felt to be prevalent; not potent; feeble.
• adj. (stock exchange) Tending towards lower prices.
• adj. (photography) Lacking contrast.

weakly

• adj. Frail, sickly or of a delicate constitution; weak.
• adv. With little strength or force.