different between abstruse vs unknown

English

Etymology

From French abstrus or its source, Latin abstr?sus (“hidden, concealed”), the perfect passive participle of abstr?d? (“conceal, to push away”), itself from ab, abs (“away”) + tr?d? (“thrust, push”). Cognate with German abstrus.

Pronunciation

• (Received Pronunciation) IPA^(key): /?b?st?u?s/
• (General American) IPA^(key): /æb?st?us/, /?b-/
• Rhymes: -u?s
• Hyphenation: ab?struse

Adjective

abstruse (comparative abstruser or more abstruse, superlative abstrusest or most abstruse)

1. Difficult to comprehend or understand. [from late 16th c.]

   Synonyms: esoteric, obscure, recondite
2. (obsolete) Concealed or hidden out of the way; secret. [from late 16th c. until mid 18th c.]

Usage notes

More abstruse and most abstruse are the preferred forms over abstruser and abstrusest.

Synonyms

• (concealed): clandestine, secret, surreptitious; See also Thesaurus:covert
• (difficult to comprehend): esoteric, obscure, recondite; See also Thesaurus:incomprehensible

Derived terms

• abstrusely
• abstruseness

Translations

References

Further reading

• abstruse in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• abstruse in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

Anagrams

• Staubers, Straubes, surbates, surbeats

French

Adjective

abstruse

1. feminine singular of abstrus

Anagrams

• arbustes

German

Adjective

abstruse

1. inflection of abstrus:
   1. strong/mixed nominative/accusative feminine singular
   2. strong nominative/accusative plural
   3. weak nominative all-gender singular
   4. weak accusative feminine/neuter singular

Latin

Participle

abstr?se

1. vocative masculine singular of abstr?sus

References

• abstruse in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press

English

Etymology

From un- +? known, past participle of know. Compare Old English ungecnawen.

Pronunciation

• (UK) IPA^(key): /?n?n??n/
• (US) enPR: ?n-n?n?, IPA^(key): /?n?no?n/

Adjective

unknown (comparative more unknown, superlative most unknown)

1. (sometimes postpositive) Not known; unidentified; not well known.

   Synonyms: anonymous, unfamiliar, uncharted, undiscovered, unexplored, unidentified, unnamed, unrecognized, unrevealed, unascertained, obscure, unsung

   Antonyms: well-known, famous, known

Derived terms

• unknown quantity

Translations

Noun

unknown (plural unknowns)

1. (algebra) A variable (usually x, y or z) whose value is to be found.
2. Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
3. A person of no identity; a nonentity
   • 1965, Bob Dylan, "Like a Rolling Stone"

     How does it feel

     To be on your own

     With no direction home

     Like a complete unknown

     Like a rolling stone?

Translations

Verb

unknown

1. past participle of unknow