| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | very deep |
| Synonyms: | boundless, deep, endless, far down, immeasurable, infinite, unending, unfathomable, unlimited, vast |
| Antonyms: | fathomable, finite, limited, measurable |
| Main Entry: | abysmal |
| Part of Speech: | adjective |
| Definition: | extending deeply |
| Synonyms: | bottomless, fathomless, plumbless, plummetless |
| Antonyms: | low |
| Main Entry: | baseless |
| Part of Speech: | adjective |
| Definition: | without substantiation |
| Synonyms: | bottomless, flimsy, foundationless, gratuitous, groundless, reasonless, unconfirmed, uncorroborated, unfounded, ungrounded, unjustifiable, unjustified, unsubstantiated, unsupported, untenable, unwarranted |
| Antonyms: | based |
| Main Entry: | deep |
| Part of Speech: | adjective |
| Definition: | extending very far, usually down |
| Synonyms: | abysmal, abyssal, below, beneath, bottomless, broad, buried, deep-seated, distant, downreaching, far, fathomless, immersed, inmost, low, profound, rooted, subaqueous, submarine, submerged, subterranean, sunk, underground, unfathomable, wide, yawning |
| Antonyms: | shallow |
| Main Entry: | gratuitous |
| Part of Speech: | adjective |
| Definition: | not necessary |
| Synonyms: | assumed, baseless, bottomless, causeless, groundless, indefensible, inessential, needless, reasonless, supererogatory, superfluous, uncalled-for, unessential, unfounded, unjustified, unmerited, unprovoked, unsupportable, unwarranted, wanton |
| Notes: | grateful means feeling or showing gratitude or feeling thankful; gratified means having received what was desired; gratuitous means costing nothing or free - unnecessary or unwarranted - without cause |
| Antonyms: | deserved, needed, reasonable, warranted |
| Main Entry: | groundless |
| Part of Speech: | adjective |
| Definition: | without reason, justification |
| Synonyms: | baseless, bottomless, causeless, chimerical, empty, false, flimsy, foundationless, gratuitous, idle, illogical, illusory, imaginary, unauthorized, uncalled-for, unfounded, unjustified, unprovoked, unsupported, unwarranted |
| Antonyms: | called-for, grounded, justified, proven, reasonable, warranted |
| Main Entry: | immeasurable |
| Part of Speech: | adjective |
| Definition: | infinite, incalculable |
| Synonyms: | alive with, bottomless, boundless, countless, crawling with, endless, extensive, illimitable, immense, indefinite, inestimable, inexhaustible, jillion, large, limitless, measureless, no end of, no end to, umpteen, unbounded, uncountable, unfathomable, unlimited, unmeasurable, unreckonable, vast, zillion |
| Antonyms: | bounded, calculable, finite, limited, measurable |
| Main Entry: | infinite |
| Part of Speech: | adjective |
| Definition: | limitless, without end |
| Synonyms: | absolute, all-embracing, bottomless, boundless, enduring, enormous, eternal, everlasting, illimitable, immeasurable, immense, incalculable, incessant, inestimable, inexhaustible, interminable, measureless, million, never-ending, no end of, no end to, numberless, perdurable, perpetual, sempiternal, stupendous, supertemporal, supreme, total, unbounded, uncounted, unending, untold, vast, wide, without limit, without number |
| Antonyms: | bounded, calculable, confined, countable, definite, ephemeral, finite, fleeting, limited, measurable |
| Main Entry: | limitless |
| Part of Speech: | adjective |
| Definition: | never-ending, infinite |
| Synonyms: | bottomless, boundless, countless, endless, illimitable, immeasurable, immense, incomprehensible, indefinite, inexhaustible, innumerable, measureless, no end of, no end to, no holds barred, no strings, numberless, unbounded, uncalculable, undefined, unending, unfathomable, unlimited, untold, vast, wide-open |
| Antonyms: | calculable, ending, exhaustible, finite, limited, measureable |