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impenetrable

see definition of impenetrable

More words related to impenetrable

compact

adjective. condensed
  • appressed
  • bunched
  • close
  • compressed
  • crowded
  • dense
  • firm
  • hard
  • impenetrable
  • impermeable
  • packed
  • pressed
  • solid
  • thick
  • tight

complex

adjective. difficult to understand

convoluted

adjective. complicated

dense

adjective. compressed, thick

denser

adjective. compressed, thick

firm

adjective. inflexible

hard

adjective. rocklike

hard-bitten

adjective. hard

hardened

adjective. unfeeling
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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