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- pronunciation:
- Im
p
 r
tuhr
b
bl
- features:
- Word Combinations (adjective), Word Parts
| part of speech: |
adjective |
| definition: |
not easily excited or disturbed; calm.
While their father was easily provoked, their mother was imperturbable.- antonyms:
- excitable, perturbable
- similar words:
- calm, cool, dispassionate, even, level, nonchalant, placid
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| related words: |
collected, patient, sedate, serene, stolid |
adverb + (adj.)imperturbable
ever, seemingly, usually
(adj.)imperturbable
+ noun
confidence, face, hair, image, mother, principal, strength, voice
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| derivations: |
imperturbably (adv.), imperturbability (n.), imperturbableness (n.) |
The word imperturbable
contains the following parts:
im-2
Latin
prefix
that means not, without
  More 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.
Example words:
imbalance, immaculate, immaterial, immature, immediate, immiscible, immobile, immodest, immortal, immovable, immune, immutable, impalpable, impartial, impassable, impatient, impeccable, impecunious, impenitent, imperfect, impermeable, impermissible, impersonal, imperturbable, impervious, implacable, implausible, impolite, imponderable, impossible, impotent, impregnable, improper, impropriety, improvise, imprudent, impudent, impunity, impure
per-
Latin
prefix
that means through, throughout; very
Example words:
impermeable, impermissible, imperturbable, impervious, parvenu, perambulate, perceive, perception, percolate, perennial, perfect, perfidy, perfoliate, perforate, perform, perfunctory, perjury, permanent, permeate, permissible, permission, permit, permute, pernicious, perorate, perpetual, perplex, persecute, persevere, persist, persistent, perspective, perspicacious, perspicuous, perspire, persuade, persuasion, persuasive, pertinacious, perturb, peruse, pervade, perverse, pervert, pervious, semipermeable
turb
Latin
root
that means confusion
Example words:
-able, -ible, -ble
Latin
adjective-forming suffix
that means capable of being, doing, or undergoing
More 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.)
Example 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
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