Synonyms
faultless, flawless, irreproachable; also accurate, correct, exact, perfect, precise; appropriate, becoming, decorous, fitting, proper, right, seemly; immaculate, unblemished, unmarred, unspoiled; infallible, unerring, unfailing
Antonyms
censurable, defective, faulty, reproachable
absolute, ideal, letter-perfect, perfect, unblemished—more at PERFECT
im·pec·ca·bly adverb : in an impeccable manner
Synonyms
faultlessly, flawlessly, ideally, perfectly—more at PERFECTLY
im·pe·cu·nious adjective : having little or no money
Synonyms
broke, destitute, indigent, needy, penniless, penurious, poor, poverty-stricken—more at POOR
im·pe·cu·nious·ness noun : the quality or state of being impecunious
Synonyms
beggary, destitution, impoverishment, indigence, need, pauperism, penury, poverty, want—more at POVERTY
im·ped·ance noun : the opposition in an electrical circuit to the flow of an alternating current
im·pede verb im·ped·ed; im·ped·ing [ORIGIN: L impedire, fr. ped-, pes foot]
: to interfere with the progress of
Synonyms
encumber, fetter, hamper, hinder, hold back, hold up, inhibit, interfere, obstruct—more at HAMPER
im·ped·i·ment noun 1 : something that impedes, hinders, or obstructs
2 : a speech defect
im·ped·i·men·ta noun plural : things that impede
im·pel verb im·pelled; im·pel·ling : to urge or drive forward or on; also : PROPEL
Synonyms
actuate, drive, move, propel, work
im·pel·ler also im·pel·lor noun : a rotor esp. in a pump
im·pend verb 1 : to hover or hang over threateningly : MENACE
2 : to be about to occur
impending adjective : that is about to occur
Synonyms
coming, forthcoming, imminent, oncoming, pending—more at FORTHCOMING
im·pen·e·tra·ble adjective 1 : incapable of being penetrated or pierced 2 : incapable of being comprehended : INSCRUTABLE — im·pen·e·tra·bil·i·ty noun
— im·pen·e·tra·bly adverb
Synonyms
[1] impervious, tight—more at TIGHT
[2] cryptic, darkling, deep, enigmatic, inscrutable, mysterious, mystic, occult, uncanny—more at MYSTERIOUS
[2] incomprehensible, unfathomable—more at INCOMPREHENSIBLE
im·pen·i·tent adjective : not penitent : not repenting of sin
— im·pen·i·tence noun
im·per·a·tive adjective 1 : expressing a command, request, or encouragement <~ sentence>
2 : having power to restrain, control, or direct
3 : not to be avoided or evaded
— imperative noun
— im·per·a·tive·ly adverb
Synonyms
[2] compulsory, incumbent, involuntary, mandatory, necessary, nonelective, obligatory, peremptory—more at MANDATORY
[3] acute, critical, dire, imperious, instant, pressing, urgent—more at ACUTE
im·per·cep·ti·ble adjective : not perceptible; especially : too slight to be perceived <~ changes>
— im·per·cep·ti·bly adverb
Synonyms
impalpable, inappreciable, indistinguishable; also inaudible, intangible, invisible, inconspicuous, indistinct, unnoticeable, unseen; faint, insignificant, slight, trivial; buried, concealed, covert,