History
History
Synonyms
UK
US
Meaning:
dreamy

(of a person) with thoughts far away from her or his surroundings or work

illusory, romantic

flimsy

(of material) light and thin; (of objects) easily destroyed

not strong; light, thin

frail

weak; fragile

breakable, weak

futile

(of an action) of no use; having no effect

hopeless, pointless

gossamery

light in weight

not heavy

illogical

without, contrary to, logic

not making sense

imaginary

existing only in the mind and not real

fictitious, invented

implausible

not plausible

not likely

improbable

not likely to be true or to happen

not likely

inconceivable

that cannot be imagined

beyond reason, belief

incredible

(almost) impossible to believe (because shocking); very surprising

beyond belief

infirm

physically or mentally weak (especially through age)

sick, weak

insignificant

having little or no value, use, meaning or importance

not important; of no consequence

insubstantial

not solidly built; not enough

weak, imaginary

intangible

that cannot be known because of the senses or fully understood, but can be sensed by the feelings

indefinite, obscured

less

not so much; a smaller amount of; without (an amount mentioned)

smaller, inferior

limp

not stiff or firm; without strength

not stiff; weak

metaphysical

based on thought and reasoning; (of poetry) intellectual and psychological, usually about themes such as love, religion and death

not physical; without physical presence

pale

(of a person's face) having little colour; (of a colour) not strong

light in color or effect

puny

small and weak

small, insignificant

shrimp

a kind of small shellfish with many legs and a long tail, used as food

small, insignificant

sleazy

(of a place) dirty, untidy

disreputable

unreal

imaginary; not real

fake, make-believe; hypothetical

unsound

not sound

not well; flimsy

weak

(of the body) having little power or energy; (of the mind) not confident, sure or determined; easily broken, damaged etc; easily defeated or changed

not strong

weightless

having no weight (e.g. as in space)

light

wrong

(of behaviour etc) morally bad, illegal, unjust; (of facts, reasons, time etc) not correct; untrue; not at all suitable

incorrect

UNSUBSTANTIAL as in Wiktionary
UNSUBSTANTIAL as in Wikipedia