Synonyms for Inordinate:

adj.

excessive, extravagant (adjective)
extreme, immoderate, exorbitant, wasteful, overmuch, unreasonable, undue.
extreme (adjective)
extreme.

n.

big, king-size, huge, wide, high, enormous, large, vast, immense, great. extreme, overabundant, overmuch, exorbitant, excess. immoderate (noun)
overmuch, study at excessive, extreme, wasteful.
inordinate (noun)
immoderate, unreasonable, excessive, undue.

Other synonyms:

overabundant, overmuch. extreme. excessive
excessive, exorbitant.
Other relevant words:
wasteful, high, great, enormous, wide, excessive, big, excess, large, overmuch, vast, immense, king-size, overabundant, huge, extreme, exorbitant.

Usage examples for inordinate

  1. Then, without hesitation, she cast herself upon the mud, and I, sitting at the tiller, my companion ashore, and pushing at her inordinate sprit, but both revelling in safety, we gave thanks and praise. – Hills and the Sea by H. Belloc
  2. I usually like autumn on the prairie, but the thought of fall, this year, doesn't fill me with any inordinate joy. – The Prairie Mother by Arthur Stringer