Synonym: slight, unclear, vague. Antonym: perceptible. Similar words: perceptible, susceptible, perception, apperception, percept, intercept, contemptible, inception. Meaning: [‚ɪmpə(r)'septəbl] 
adj. impossible or difficult to perceive by the mind or senses.
adj. impossible or difficult to perceive by the mind or senses. 
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(31) The transition to "liberalism" takes place in an imperceptible manner, like continental drift, thus hiding its effects from view.
(32) Stated another way, the "Butterfly Effect" does not propose that a butterfly flapping its wings causes the change, merely that the flapping results in an imperceptible change in local conditions.
(33) The film was edited by a skilled technician so that the joints are imperceptible.
(34) The imperceptible differences might be due to rounding or same-result calculations of a floating-point data types.
(35) From where he sat he made an imperceptible sign to the tavern - keeper.
(36) Only an imperceptible portion of petrodollars bankroll terrorism,[www.Sentencedict.com] which is anyway quite cheap.
(37) The forming of football consciousness needs longtime imperceptible edification to permeation.
(38) Its own elliptic motion around it will be almost imperceptible.
(39) The rule of internet exerts an imperceptible influence on mode of thinking and the mode of thinking influent reception of TV audience.
(40) A hieroglyph , " said the rhetor, "is the name given to a symbol of some object, imperceptible to the senses and possessing qualities similar to those of the symbol.
(41) Because its characteristics of covertness, naturalness, indirectness, it can reach a kind of imperceptible result in practice.
(42) The body ordinarily is constantly shedding imperceptible tiny, thin fragments of stratum corneum.
(43) Strong earthquake wave, it go the rounds whole earth according to imperceptible speed and method.
(44) Where from a chaos of color spills, lines, tones and half-tints, imperceptible images there comes "Light" and that is deific "Light"!
(45) To manhoodFemale, adipose excessive reduce can imperceptible ground to cause stop the amenorrhoea with oviposit or apparent symptom.
More similar words: perceptible, susceptible, perception, apperception, percept, intercept, contemptible, inception, sceptical, deceptive, deception, reception, exception, receptive, conception, exceptional, exceptionally, compatible, convertible, acceptable, irresistible, unacceptable, indestructible, incontrovertible, impermeable, impeccable, impossible, implausible, imperturbable, unimpeachable.