Synonyms for Remarkable:

adj.

all (adjective)
singular.
different (adjective)
unusual.
exceptional (adjective)
exceptional, extraordinary, peculiar, marvelous, fantastic, noteworthy, outlandish, novel, phenomenal, unprecedented, miraculous, exotic, unusual, sensational, superior, wonderful, conspicuous, excellent, fabulous, striking, Wonderous, study at noticeable, notable, outstanding.
extraordinary, unusual (adjective)
exceptional, conspicuous, striking, important, singular, salient, marked, arresting, significant, preeminent, notable, miraculous, phenomenal, noteworthy, signal, wonderful, noticeable, prominent, famous, outstanding, distinguished, peculiar, surprising.
important (adjective)
noteworthy.
irregular (adjective)
exceptional.
noticeable (adjective)
arresting.
reputable (adjective)
esteemed, distinguished, well-known, fabled, reputed, prominent, famous, celebrated, renowned, popular, legendary, illustrious, notorious, memorable, pronounced, acclaimed, mythical, preeminent, exalted, notable, elevated, noteworthy, Famed.

n.

astonishing, surprising, unexpected, earth-shattering, staggering, amazing. bold, conspicuous, pointed, noticeable, observable, eye-catching, marked, signal, arresting, salient, see. remarkable (noun)
important, extraordinary, singular, significant, noteworthy.

Other synonyms:

astonishing, unexpected, eye-catching, staggering, earth-shattering, STANDOUT, out of sight, arresting, conspicuous. towering, marked. amazing. observable. magnificent, bold. pointed. extraordinary
surprising.
observable
noticeable.
outstanding
awesome.
prominent
salient.

Usage examples for remarkable

  1. There was nothing remarkable about him. – A Gentleman Vagabond and Some Others by F. Hopkinson Smith
  2. There is something a little remarkable in the solution of this puzzle which I will explain. – Amusements in Mathematics by Henry Ernest Dudeney
  3. This remarkable old man knew of everybody, so it seemed. – The Intriguers by William Le Queux