1. 
[syn: especial(a), exceptional, particular(a), special]
The Collaborative International Dictionary of English v.0.48:
Especial \Es*pe"cial\, a. [OF. especial, F. sp['e]cial, L.
   specialis, fr. species a particular sort, kind, or quality.
   See Species, and cf. Special.]
   Distinguished among others of the same class or kind;
   special; concerning a species or a single object; principal;
   particular; as, in an especial manner or degree.
   Syn: Peculiar; special; particular; uncommon; chief. See
        Peculiar.
        [1913 Webster]
WordNet (r) 3.0 (2006):
especial
    adj 1: surpassing what is common or usual or expected; "he paid
           especial attention to her"; "exceptional kindness"; "a
           matter of particular and unusual importance"; "a special
           occasion"; "a special reason to confide in her"; "what's
           so special about the year 2000?" [syn: especial(a),
           exceptional, particular(a), special]
Moby Thesaurus II by Grady Ward, 1.0:
40 Moby Thesaurus words for "especial":
   absolute, certain, concrete, defined, definite, detailed,
   determinate, different, distinct, distinguished, dominant,
   esoteric, exceptional, express, extraordinary, fixed, individual,
   inner, intimate, minute, notable, noteworthy, paramount,
   particular, personal, precise, predominant, preeminent,
   preponderant, private, respective, set, several, singular,
   solipsistic, special, specific, supreme, surpassing, unusual