Impregnable Thesaurus / Synonyms / page 6

135 entries under adjective topic. ×

0	bad
0	bound(safe, sheltered, protected, locked)
0	buttoned down(expression, safe, sheltered, protected)
0	callous
0	compressed
0	concrete
0	condensed
0	dense
0	difficult
0	fastened(firm, true, fixed, constant)
0	flinty
0	granite
0	hardened
0	in safe hands(expression, idiom, snug, intact)
0	indefeasible(secure, unattainable, unbeatable, insurmountable)
0	inflexible
0	intense
0	iron(safe, sheltered, protected, locked)
0	jeopardous
0	leathery

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APA	Smart Define. (2015). impregnable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impregnable/thesaurus/synonyms
Chicago	Smart Define. 2015. "impregnable thesaurus" https://smartdefine.org/impregnable/thesaurus/synonyms (accessed September 23, 2026).
Harvard	Smart Define 2015, impregnable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impregnable/thesaurus/synonyms>.
MLA	Smart Define. "impregnable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impregnable/thesaurus/synonyms>

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