The Collaborative International Dictionary of English v.0.48:

Arrest \Ar*rest"\, v. t. [imp. & p. p. Arrested; p. pr. & vb.
   n. Arresting.] [OE. aresten, OF. arester, F. arr[^e]ter,
   fr. LL. arrestare; L. ad + restare to remain, stop; re +
   stare to stand. See Rest remainder.]
   1. To stop; to check or hinder the motion or action of; as,
      to arrest the current of a river; to arrest the senses.
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            Nor could her virtues the relentless hand
            Of Death arrest.                      --Philips.
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   2. (Law) To take, seize, or apprehend by authority of law;
      as, to arrest one for debt, or for a crime.
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   Note: After this word Shakespeare uses of ("I arrest thee of
         high treason") or on; the modern usage is for.
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   3. To seize on and fix; to hold; to catch; as, to arrest the
      eyes or attention. --Buckminster.
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   4. To rest or fasten; to fix; to concentrate. [Obs.]
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            We may arrest our thoughts upon the divine mercies.
                                                  --Jer. Taylor.
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   Syn: To obstruct; delay; detain; check; hinder; stop;
        apprehend; seize; lay hold of.
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The Collaborative International Dictionary of English v.0.48:

Arresting \Ar*rest"ing\ ([a^]r*r[e^]st"[i^]ng), a.
   Striking; attracting attention; impressive.
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         This most solemn and arresting occurrence. --J. H.
                                                  Newman.
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WordNet (r) 3.0 (2006):

arresting
    adj 1: commanding attention; "an arresting drawing of people
           turning into animals"; "a sensational concert--one never
           to be forgotten"; "a stunning performance" [syn:
           arresting, sensational, stunning]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "arresting":
   affective, appealing, apprehension, arrestation, arrestment,
   attractive, conspicuous, dazzling, detention, electrifying,
   enchanting, extraordinary, fascinating, impressive, marked, moving,
   nab, outstanding, pickup, pinch, pointed, prominent, remarkable,
   salient, shocking, signal, striking, stunning, surprising,
   touching