Firm
Firm adjective - Not showing weakness or uncertainty.
Guaranteed and firm are semantically related. In some cases you can use "Guaranteed" instead an adjective "Firm".
Guaranteed
Firm and guaranteed are semantically related. Sometimes you can use "Firm" instead an adjective "Guaranteed".
Nearby Word: guarantee
Mutual synonyms
Both words in one sentence
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Having established his firm belief in the Beard Of Evil as a guaranteed indicator of a character's untrustworthiness, Jim refuses to let anyone see his character sheet, claiming Qui-Gon is clean-shaven.
Source: Beard of Evil -
Lines include "Standin' there holding that drippin' dipstick/With a firm grip, yet so delicate/And the way you took that orange oil rag and wiped it clean/Its guaranteed to get repeated in my dreams" and "Got so lost in your smile when you asked me what the mileage was"
Source: Wrench Wench
Cite this Source
Guaranteed and Firm. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/firm/guaranteed
Firm & Guaranteed. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/firm/guaranteed>.
Guaranteed or Firm. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/firm/guaranteed.
Google Ngram Viewer shows how "firm" and "guaranteed" have occurred on timeline