Synonyms of the word

indefinable

• adj. That cannot be precisely defined or put into words.
• adj. That defies description; indescribable.
• n. Anything that cannot be defined.

indescribable

• adj. Impossible, or very difficult to describe.
• adj. Exceeding all description.

ineffable

• adj. Beyond expression in words; unspeakable.
• adj. Forbidden to be uttered; taboo.

inexpressible

• adj. Unable to be expressed.

undefinable

• adj. Not definable.
• n. Anything that cannot be defined.

undefined

• adj. Lacking a definition or value.
• adj. (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

unexpressible

• adj. Impossible to express.

unspeakable

• adj. Incapable of being spoken or uttered; unutterable; ineffable; inexpressible.
• adj. Unfit or not permitted to be spoken or described.
• adj. Extremely bad or objectionable.

untellable

• adj. That cannot be told; indefinable, indescribable or ineffable.

unutterable

• adj. Not utterable; incapable of being spoken or voiced; inexpressible; ineffable; unspeakable.

vague

• adj. Not clearly expressed; stated in indefinite terms.
• adj. Not having a precise meaning.
• adj. Not clearly defined, grasped, or understood; indistinct; slight.
• adj. Not clearly felt or sensed; somewhat subconscious.
• adj. Not thinking or expressing one’s thoughts clearly or precisely.
• adj. Lacking expression; vacant.
• adj. Not sharply outlined; hazy.
• adj. Wandering; vagrant; vagabond.
• n. (obsolete) A wandering; a vagary.
• n. An indefinite expanse.
• v. To wander; to roam; to stray.