Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Secret and difficult are semantically related. In some cases you can use "Secret" instead an adjective "Difficult".
Nearby Word: difficulty
Both words in one sentence
- In Mercury Rising, a secret agency publishes messages in secret codes in the puzzles section of newspapers to determine how difficult they are for amateur code crackers.
Source: Public Secret Message -
In a secret room hidden within a secret room, itself pretty difficult to find, there is a unique enemy, who will immediately run away from you before you can fight it.
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Andy Watson: It's kind of difficult to do top secret flight ops, huh, on a base surrounded by tourists with telescopes and video cameras.
Source: Area 51
Cite this Source
Secret and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/secret
Difficult & Secret. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/secret>.
Secret or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/secret.
Google Ngram Viewer shows how "difficult" and "secret" have occurred on timeline