Synonyms of the word

fallible

• adj. Capable of making mistakes or being wrong.

errant

• adj. Straying from the proper course or standard, or outside established limits.
• adj. Prone to making errors.
• adj. (proscribed) Utter, complete (negative); arrant.

erring

• v. present participle of err.
• n. The act of one who errs; sin.
• v. present participle of er.

error-prone

• adj. In the habit of making errors.

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.

human

• adj. (not comparable) Of or belonging to the species Homo sapiens or its closest relatives.
• adj. (comparable) Having the nature or attributes of a human being.
• n. A human being, whether man, woman or child.
• v. (rare) To behave as or become, or to cause to behave as or become, a human.

imperfect

• adj. Not perfect.
• adj. (botany) unisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.
• adj. (taxonomy) Known or expected to be polyphyletic, as of a form taxon.
• adj. (obsolete) Lacking some elementary organ that is essential to successful or normal activity.
• n. Something having a minor flaw.
• n. (grammar) A tense of verbs used in describing a past action that is incomplete or continuous.
• v. (transitive) To make imperfect.

undependable

• adj. Not dependable.

unreliable

• adj. Not reliable.

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.