SAT Vocabulary Level 2 — Set 43

Set 43 of SAT Vocabulary Level 2 covers 5 words: invariable, unbelievable, relentless, cordial, titanic. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.

1. invariable · adjective/ɪnˈvɛriəbl/

   not subject to change or variation

   The invariable routine of the travelers ensured that they always arrived on time at their destination.

   Synonyms: unchanging, constant, fixed

   Origin: from Latin 'invariabilis', from 'in-' meaning 'not' + 'variabilis' meaning 'changeable' or 'variable'

2. unbelievable · adjective/ˌʌn.bɪˈliː.və.bəl/

   difficult to believe or accept as true

   The magician's performance was so unbelievable that the audience was left in complete awe.

   Synonyms: incredible, implausible, unimaginable

   Origin: from the prefix 'un-' meaning 'not' and 'believable', derived from 'believe' which is from Old English 'belyfan'

3. relentless · adjective/rɪˈlɛntləs/

   continuing without pause or reduction in intensity

   Despite the challenges, her relentless determination to excel in her studies paid off with top grades.

   Synonyms: unrelenting, persistent, unyielding

   Origin: From the Middle English 'relentless', derived from 'relent', which comes from the Latin 'relenctus' meaning 'to release or lessen.'

4. cordial · adjective/ˈkɔr.dʒəl/

   warm and friendly

   The host greeted us with a cordial smile and warm handshake as we entered the party.

   Synonyms: friendly, warm, genial

   Origin: From Middle English 'cordial', from Latin 'cordialis' meaning 'of or for the heart'

5. titanic · adjective/taɪˈtæn.ɪk/

   extremely large or powerful

   The company faced titanic challenges in its efforts to expand into new markets, requiring immense resources and strategic planning.

   Synonyms: enormous, colossal, gigantic

   Origin: The word 'titanic' comes from the Greek word 'Titan', referring to the Titans of Greek mythology who were of enormous size and power.