1. 
[syn: entirely, exclusively, solely, alone, only]
WordNet (r) 3.0 (2006):
exclusively
    adv 1: without any others being included or involved; "was
           entirely to blame"; "a school devoted entirely to the
           needs of problem children"; "he works for Mr. Smith
           exclusively"; "did it solely for money"; "the burden of
           proof rests on the prosecution alone"; "a privilege
           granted only to him" [syn: entirely, exclusively,
           solely, alone, only]
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "exclusively":
   alone, barely, but, completely, entirely, integrally, irreducibly,
   just, merely, only, particularly, plainly, purely, simply,
   simply and solely, singly, solely, totally, unanalyzably,
   undividedly, wholly