Longman Dictionary of Contemporary English homepage

Date: 1200-1300
Language: Old French
Origin: profond 'deep', from Latin profundus, from fundus 'bottom'

profound

adjective
     
pro‧found
1 having a strong influence or effect
profound effect/influence/impact/consequence etc
Tolstoy's experiences of war had a profound effect on his work.
The mother's behaviour has a profound impact on the developing child.
profound changes in society
2 showing strong, serious feelings [= deep]:
3 showing great knowledge and understanding [= deep]:
a profound question
Jenner is a profound thinker.
4 literaryMP deep or far below the surface of something [= deep]:
Her work touches something profound in the human psyche.
5 complete:
profound deafness
profoundly adverb:
profoundly disturbing news

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