Impassable, impenetrable, impervious, impermeable are comparable when they mean not allowing passage through.
Category: Synonyms
Impact vs Impingement vs Collision vs Clash vs Shock vs Concussion vs Percussion vs Jar vs Jolt
Impact, impingement, collision, clash, shock, concussion, percussion, jar, jolt mean a forcible or enforced contact between two or more things, especially a contact so violent as to affect seriously one or the other or all of the persons or things involved.
Immortal vs Deathless vs Undying vs Unfading
Immortal, deathless, undying, unfading mean not subject to death or decay and, hence, everlasting. With the exception of immortal, all of these words are chiefly in poetic use and are distinguishable especially in their connotations and applications.
Immoral vs Unmoral vs Nonmoral vs Amoral
Immoral, unmoral, nonmoral, amoral are all briefly definable as not moral, yet they are not often interchangeable and are frequently confused, largely because the implications and connotations of the second element are not the same in each compound.
Immaterial vs Spiritual vs Incorporeal
Immaterial, spiritual, incorporeal are comparable when meaning not composed of matter.
Imaginative vs Imaginal vs Imaginable vs Imaginary
Imaginative, imaginal, imaginable, imaginary, though not synonymous, are sometimes confused because of their verbal likeness.
Imagination vs Fancy vs Fantasy
Imagination, fancy, fantasy are comparable when denoting either the power or the function of the mind by which mental images of things are formed or the exercise of that power especially as manifested in poetry or other works of art.
Imaginary vs Fanciful vs Visionary vs Fantastic vs Chimerical vs Quixotic
Imaginary, fanciful, visionary, fantastic, chimerical, quixotic are comparable when they are applied to conceptions or to the persons who form the conceptions and mean unreal or unbelievable and out of keeping with things as they are or conceiving such unreal or unbelievable things.
Image vs Effigy vs Statue vs Icon vs Portrait vs Photograph vs Mask
Image, effigy, statue, icon, portrait, photograph, mask all mean a lifelike representation especially of a living being.
Illuminate vs Illumine vs Light vs Lighten vs Enlighten vs Illustrate
Illuminate, illumine, light, lighten, enlighten, illustrate are comparable when meaning to fill with light or to throw light upon.
Illiberal vs Narrow-minded vs Narrow vs Intolerant vs Bigoted vs Hidebound
Illiberal, narrow-minded, narrow, intolerant, bigoted, hidebound mean so lacking in breadth of mind or experience as to be unwilling or unable to understand the point of view of others.
Ignorant vs Illiterate vs Unlettered vs Uneducated vs Untaught vs Untutored vs Unlearned
Ignorant, illiterate, unlettered, uneducated, untaught, untutored, unlearned mean not having knowledge.