Synonyms of the word

fly-by-night

• n. A creature which flies at night; a nocturnal flier or traveler.
• n. One who departs or flees at night in order to avoid creditors, law enforcement etc. (often used attributively).
• n. (idiomatic, derogatory) A person or business that appears and disappears rapidly, or gives an impression…
• n. (idiomatic, derogatory) A traveling businessman or tradesman.

debitor

• n. A debtor.

debtor

• n. (economics) A person or firm that owes money; one in debt; one who owes a debt.
• n. (law) One who owes another anything, or is under obligation, arising from express agreement, implication…

impermanent

• adj. Not permanent; momentary.

shady

• adj. Abounding in shades.
• adj. Causing shade.
• adj. Overspread with shade; sheltered from the glare of light or sultry heat.
• adj. (informal) Not trustworthy; disreputable.
• adj. (Britain, slang) Mean, cruel.

temporary

• adj. Not permanent; existing only for a period or periods of time.
• adj. Existing only for a short time or short times; transient, ephemeral.
• n. One serving for a limited time; short-term employee.

untrustworthy

• adj. Not deserving of trust; unreliable.

untrusty

• adj. Not trusty.