Synonyms of deepen

deepen

verb

ˈdē-pən 

as in to intensify

to make markedly greater in measure or degree

this book really deepens our knowledge of how the brain works

Synonyms & Similar Words

• intensify
• enhance
• heighten
• strengthen
• consolidate
• reinforce
• broaden
• amplify
• sharpen
• expand
• boost
• accentuate
• redouble
• step up
• extend
• magnify
• lengthen
• augment
• emphasize
• beef (up)
• accelerate
• maximize
• enforce
• enlarge
• amp (up)
• hasten
• quicken
• supplement
• enliven
• point (up)
• exacerbate
• aggravate
• stress
• restrengthen
• jazz (up)

Antonyms & Near Antonyms

• reduce
• diminish
• decrease
• weaken
• moderate
• lessen
• tone (down)
• abate
• subdue
• recede
• alleviate
• subside
• lighten
• ease
• dwindle
• let up (on)
• wane
• taper (off)

Example Sentences

Recent Examples of deepen

South Korean officials and experts say the vessel was likely built with Russian assistance amid deepening military ties between the countries, but some analysts have questioned how effective the vessel would be in active service. — ABC News, 4 July 2026

Recent allegations of irregularities in government recruitment exams have only deepened frustrations among some young Indians. — Ayushi Shah, CNN Money, 4 July 2026

Customization workshops deepen that engagement further, allowing visitors to create personalized Polo pieces with immediate emotional value. — Kate Hardcastle, Forbes.com, 2 July 2026

The aluminum venture also deepens the relationship between IHC — chaired by Abu Dhabi’s deputy ruler Sheikh Tahnoon bin Zayed — and billionaire Gautam Adani’s conglomerate, following IHC’s $2 billion investment in Adani companies in 2022. — Mohammed Sergie, semafor.com, 2 July 2026