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Related to unfathomable: roguishly
References in classic literature ?
Near it in the field, I remember, were three faint points of light, three telescopic stars infinitely remote, and all around it was the unfathomable darkness of empty space.
Keep your army continually on the move, and devise unfathomable plans.
A strange, incomprehensible, unearthly sound seemed to pervade the whole city; one felt that something unusual and terrible was happening in all the streets, now dark as ocean's most unfathomable caves.
The West Wind is too great a king to be a dissembler: he is no calculator plotting deep schemes in a sombre heart; he is too strong for small artifices; there is passion in all his moods, even in the soft mood of his serene days, in the grace of his blue sky whose immense and unfathomable tenderness reflected in the mirror of the sea embraces, possesses, lulls to sleep the ships with white sails.
Our caresses, our tender words, our still rapture under the influence of autumn sunsets, or pillared vistas, or calm majestic statues, or Beethoven symphonies all bring with them the consciousness that they are mere waves and ripples in an unfathomable ocean of love and beauty; our emotion in its keenest moment passes from expression into silence, our love at its highest flood rushes beyond its object and loses itself in the sense of divine mystery.
It was this unfathomable longing of the soul to vex itself - to offer violence to its own nature - to do wrong for the wrong's sake only - that urged me to continue and finally to consummate the injury I had inflicted upon the unoffending brute.
When he reached the gate, however, a singular feeling took possession of him--a feeling which, strange as it may seem, had its source in its unfathomable good nature.
Unfathomable to mere mortals is the lore of fiends.
The illimitable greatness of the one, the unfathomable seduction of the other working their immemorial spells from generation to generation fell upon my heart at last: a common fortune, an unforgettable memory of the sea's formless might and of the sovereign charm in that woman's form wherein there seemed to beat the pulse of divinity rather than blood.
They did not actually use this archaic abyss as a bunker, because it was by tradition unfathomable, and even for practical purposes unfathomed.
Tulkinghorn, without a ruffle on the surface of his unfathomable depths, drinking his old wine, and go down into the streets.
You saw how I adored her, and later you learned that, inspired by some unfathomable whim, she had taken the last, long, voluntary pilgrimage upon the cold bosom of the mysterious Iss, leaving me desolate.