not sounded, measured, or explored with or as with a plumb
2.
not fully plumbed, or understood
unplumbed in American English
(unˈplʌmd)
adjective
1.
not plumbed; not tested or measured with a plumb line
2.
not understood or explored in depth, as an idea, theory, feeling, or experience
Word origin
[1615–25; un-1 + plumb + -ed3]This word is first recorded in the period 1615–25. Other words that entered Englishat around the same time include: berth, evolution, garrote, scintillation, triggerun- is a prefix meaning “not,” freely used as an English formative, giving negative oropposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment); -ed is a suffix forming adjectives from nouns. Other words that use the affix -ed include: bearded, monied, tender-hearted
Examples of 'unplumbed' in a sentence
unplumbed
The depth of his self-knowledge is unplumbed.
The Times Literary Supplement (2012)
This might seem an odd time to find within oneself previously unplumbed depths of patriotism.
Times, Sunday Times (2018)
At another 'fully furnished' flat she arrived to find no curtains, the shower broken and the washing machine unplumbed.