Intelligent
Intelligent adjective - Having or showing quickness of mind.
Tough and intelligent are semantically related. In some cases you can use "Tough" instead an adjective "Intelligent".
Tough
Tough adjective - Not easily chewed.
Intelligent and tough are semantically related. Sometimes you can use "Intelligent" instead an adjective "Tough".
Mutual synonyms
Both words in one sentence
-
He's really a good agent, tough and intelligent, if a little flaky.
Source: Film / The In-Laws -
Tough and Intelligent are actually the only fair difficulty levels, this is the difficulty where the AI makes full use of its programing and has no bonuses or penalties to their economy.
- Mei Ying in Indiana Jones and the Emperor's Tomb is supposedly an intelligent and tough sidekick, but proves herself to be borderline-useless during fights and even manages to get incapacitated and possessed by the Big Bad during the final battle.
Source: Faux Action Girl
Cite this Source
Tough and Intelligent. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/intelligent/tough
Intelligent & Tough. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/intelligent/tough>.
Tough or Intelligent. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/intelligent/tough.
Google Ngram Viewer shows how "intelligent" and "tough" have occurred on timeline