The scientist presented unquestionable evidence that climate change is impacting our environment.
synonyms
indisputableundeniableirrefutable
word origin — The word 'unquestionable' originates from the prefix 'un-' meaning 'not', combined with 'questionable', which comes from 'question' and the suffix '-able' meaning 'capable of being'. The root 'question' derives from the Latin 'quaestio' meaning 'a seeking, inquiry or question'.
IELTS Vocabulary — Set 121
Set 121 of IELTS Vocabulary covers 5 words: unquestionable, immeasurable, prosperous, fundamental, extrinsic. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.
unquestionable · adjective/ʌnˈkwɛs.tʃə.bəl/
not able to be disputed or doubted
The scientist presented unquestionable evidence that climate change is impacting our environment.
Synonyms: indisputable, undeniable, irrefutable
Origin: The word 'unquestionable' originates from the prefix 'un-' meaning 'not', combined with 'questionable', which comes from 'question' and the suffix '-able' meaning 'capable of being'. The root 'question' derives from the Latin 'quaestio' meaning 'a seeking, inquiry or question'.
immeasurable · adjective/ɪˈmɛʒərəbəl/
unable to be measured or quantified
The child's joy was immeasurable as she opened her birthday presents.
Synonyms: incalculable, unfathomable, limitless
Origin: From Middle French 'immeasurable', from Latin 'im' (not) + 'mensurabilis' (measurable), from 'mensurare' (to measure)
prosperous · adjective/ˈprɑːspərəs/
characterized by financial success and good fortune
The community became a prosperous town after the new businesses opened, providing jobs and stimulating the local economy.
Synonyms: affluent, thriving, successful
Origin: from Latin 'prosperus' meaning 'favorable, successful', from 'pro' (for) + 'spes' (hope)
fundamental · adjective/ˌfʌndəˈmɛntəl/
serving as a foundation or basis; essential or primary
Understanding the fundamental principles of mathematics is essential for success in any advanced science course.
Synonyms: basic, essential, core
Origin: from Latin 'fundamentalis', from 'fundamentum' meaning 'foundation'
extrinsic · adjective/ɛkˈstrɪn.sɪk/
originating from outside an organism or system
The researchers noted that the extrinsic factors, such as environmental conditions and social influences, played a significant role in the organism's behavior.
Synonyms: external, outside, outer
Origin: From Latin 'extrinsicus', meaning 'on the outside, external'