Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Dictionary Suite



Im pa s bl
Word Combinations (adjective), Word Parts
part of speech: adjective
definition 1: not able to happen, exist, or be done.
an impossible task
hopeless, inconceivable, unattainable, unimaginable, unthinkable
attainable, possible
similar words:
absurd, difficult, illogical, inaccessible, inappropriate, intractable, unbelievable, undoable, unlikely, unreasonable
definition 2: not capable of being true.
It's impossible that he could have done what you say.
illogical, inconceivable, unbelievable, unthinkable
similar words:
absurd, incredible, preposterous, unimaginable, unlikely, unreasonable
definition 3: very difficult or intolerable.
By running away, she put him in an impossible situation.
hopeless, insufferable, intolerable, unbearable
bearable, manageable, possible
similar words:
difficult, disagreeable, distasteful, inappropriate, objectionable, offensive, unacceptable, unpleasant, unsuitable
Word Combinations  About this feature
adverb + (adj.)impossible almost, anatomically, but, downright, flatly, humanly, logically, mathematically, means, nearly, nigh, nowadays, physically, physiologically, politically, practically, scientifically, seemingly, technically, theoretically, utterly, virtually, well-nigh  [See all][See only the most frequent]
(adj.)impossible + adverb accurately
(adj.)impossible + noun angle, dream, feat, fiction, gauge, ideal, odds, perfection, predicament, task
Word Parts  About this feature
The word impossible contains the following parts:
im-2 Latin prefix that means not, without
Show wordsHide wordsMore about this word part:
The prefix im-2 occurs in Latin loanwords. It is an assimilated form of in-2 used before roots beginning with the letter "m," "p," and "b." See in-2.
poss, pot Latin root that means able; power
-able, -ible, -ble Latin adjective-forming suffix that means capable of being, doing, or undergoing
Show wordsHide wordsMore about this word part:
The suffix -able , and its variants, is attached to Latin verb roots or English transitive verbs to form adjectives. (In a small set of cases, -able is attached to a noun, e.g. knowledgeable and marriageable.) For spelling purposes, it is useful to know that -able is more likely to be added to a whole English word (comparable , adorable ), while -ible is more likely to follow a bound root (visible , legible ). However,there are still many words which combine a root with -able (capable , inevitable ). The suffix -ity can be added to any adjective ending in -able , -ible , -ble to produce a corresponding noun ending in -ability, -ibility, -bility (possible + -ity > possibility; irrevocable + -ity > irrevocability.)
Show wordsHide wordsExample words:
acceptable, accessible, admissible, adorable, amiable, amicable, audible, avoidable, believable, bearable, biodegradable, capable, calculable, cognizable, comparable, compatible, comprehensible, conformable, conversable, convertible, corrigible, credible, creditable, curable, dependable, despicable, disagreeable, disposable, divisible, eligible, explicable, flammable, flexible, illegible, illimitable, imaginable, immiscible, immovable, immutable, impalpable, impassable, impeccable, impermeable, impermissible, imperturbable, implacable, implausible, imponderable, impossible, impregnable, inalienable, inaudible, incapable, incalculable, incommunicable, incomprehensible, inconceivable, detectable, conceivable, incorrigible, incredible, incurable, indefeasible, indelible, indescribable, indestructible, indivisible, indomitable, ineligible, ineluctable, ineradicable, inescapable, inevitable, inexorable, inexpiable, inexplicable, infallible, inhospitable, inimitable, inscrutable, inseparable, insuperable, intangible, interminable, intractable, invaluable, invariable, invincible, invisible, irrefragable, irrefutable, irremissible, irreparable, irreversible, irrevocable, legible, likable, lovable, manageable, measurable, movable, navigable, notable, opposable, palpable, perishable, permissible, placable, portable, possible, potable, predictable, preferable, prescriptible, recognizable, remissible, reprehensible, reversible, risible, semipermeable, sensible, superable, susceptible, tangible, tenable, tolerable, tractable, transmissible, unsupportable, usable, viable, visible, washable, affordable, allowable, reliable, remarkable, approachable, disputable, drinkable, durable, eatable, renewable, sustainable, unshakable