Synonyms of the word

shaky

• adj. Shaking or trembling.
• adj. Nervous; Anxious.
• adj. (of wood) Full of shakes or cracks; cracked.
• adj. Easily shaken; tottering; unsound.

insecure

• adj. Not secure.
• adj. Not comfortable or confident in oneself or in certain situations.

precarious

• adj. (comparable) Dangerously insecure or unstable; perilous.
• adj. (law) Depending on the intention of another.
• adj. (dentistry) Relating to incipient caries.

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.

shivering

• v. present participle of shiver.
• n. The action of shivering.

trembling

• n. a tremble.
• v. present participle of tremble.

unsafe

• adj. Not safe; dangerous.

unstable

• adj. Having a strong tendency to change.
• adj. Fluctuating; not constant.
• adj. Fickle.
• adj. Unpredictable.
• adj. (chemistry) Readily decomposable.
• adj. (physics) Radioactive, especially with a short half-life.
• v. (transitive) To release (an animal) from a stable.

unsteady

• adj. Not held firmly in position, physically unstable.
• adj. Noted for lack of regularity or uniformity.
• adj. Inconstant in purpose, or volatile in behavior.
• v. To render unsteady, removing balance.

wobbly

• adj. Unsteady and tending to wobble.
• n. (US, labor union) Alternative spelling of Wobbly.
• n. (Britain, slang) A wobbler; a fit of rage.

wonky

• adj. Lopsided, misaligned or off-centre.
• adj. (chiefly Britain, Australia, New Zealand) Feeble, shaky or rickety.
• adj. (computing, especially Usenet) Suffering from intermittent bugs; broken.
• adj. Generally incorrect.
• n. A subgenre of electronic music employing unstable rhythms, complex time signatures, and mid-range synths.
• adj. Technically worded, in the style of jargon.