I'd suggest buying a subscription to this online dictionary. which is quite strong on synonyms:
------
synonyms REMARKABLE,
PROMINENT,
OUTSTANDING,
CONSPICUOUS,
SALIENT,
SIGNAL,
STRIKING,
ARRESTING:
noticeable applies to whatever is worthy of notice or unlikely to
escape notice <the influence of northern architecture and farming
methods is still
noticeable --
American Guide Series: Louisiana>
REMARKABLE applies to that which commands attention or comment as extraordinary or exceptional <a sudden and
remarkable transformation of feeling -- W.A.Swanberg> <the
remarkable belief of some primitive peoples which associates twins with water and especially with rain -- J.G.Frazer>
PROMINENT describes
that which stands out from its setting or environment and demands
notice as superior or more important <the 25-foot cylindrical marble
shaft, surmounted with draped flags and an eagle, occupies a
prominent position in a traffic island on the main street --
American Guide Series: Pennsylvania> <his inflammatory speeches against the Hitler regime won him a
prominent place on the Nazi blacklist --
Americana Annual>
OUTSTANDING, close to
PROMINENT in meaning and connotation, heightens the notion of rising above or excelling others <fortunate, too, in the men of
outstanding ability
who planned our resources and our campaigns -- Clement Attlee>
<trout appeared at several points along the main stream and have
steadily increased in number, until the Au Sable is known as the
outstanding trout stream in the state --
American Guide Series: Michigan>
Webster's Third New International Dictionary, Unabridged. Merriam-Webster, 2002. http://unabridged.merriam-webster.com
------------------