C2 English Adverbs: The Complete List

Welcome to the pinnacle of adverbial usage in English. The C2 level focuses on a select group of highly specific adverbs that add a layer of formality, precision, and scholarly weight to your language. These are not words for everyday conversation but are indispensable for high-level academic writing, legal discourse, and sophisticated argumentation.

This curated list will help you master words that define manner with extreme precision, such as diligently and gingerly; formal adverbs that structure arguments, like henceforth and whereby; and powerful intensifiers like vehemently. Understanding and correctly using these adverbs is a hallmark of true language proficiency.

Word Example Sentence IPA (UK)
arguably She is arguably the best tennis player of all time.
Word Partners: arguably the best/worst, arguably the most important
/ˈɑːɡjuəbli/
diligently She has always worked diligently to achieve her goals.
Word Partners: work diligently
/ˈdɪlɪdʒəntli/
gingerly He gingerly touched the hot plate to see if it was still on. /ˈdʒɪndʒəli/
henceforth Henceforth, all staff must sign in upon arrival. /ˌhensˈfɔːθ/
hitherto The project has revealed hitherto unseen levels of public engagement.
Word Partners: a hitherto unknown species, hitherto unseen
/ˌhɪðəˈtuː/
immeasurably The new software has improved our work immeasurably. /ɪˈmeʒərəbli/
imperceptibly The light in the room began to fade imperceptibly. /ˌɪmpəˈseptəbli/
inter alia The report discussed, inter alia, the issue of climate change and its economic impact. /ˌɪntər ˈeɪliə/
intermittently The rain fell intermittently throughout the day. /ˌɪntəˈmɪtəntli/
patently It was patently obvious that she was lying.
Word Partners: patently false, patently obvious, patently absurd
/ˈpeɪtəntli/
resolutely She resolutely refused to answer any more questions.
Word Partners: resolutely refuse/oppose
/ˈrezəluːtli/
vehemently He vehemently denied the accusations against him.
Word Partners: vehemently deny, vehemently oppose
/ˈviːəməntli/
verbatim She was able to repeat the conversation verbatim.
Word Partners: repeat verbatim, quote verbatim
/vɜːˈbeɪtɪm/
whereby They have introduced a system whereby employees can share their ideas.
Word Partners: a system whereby, a process whereby
/weəˈbaɪ/

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