Synonyms of the word

vigorous

• adj. Physically strong and active.
• adj. Rapid of growth.

energetic

• adj. Possessing, exerting, or displaying energy.
• adj. Of or relating to energy.

robust

• adj. Evincing strength and health; strong.
• adj. Violent; rough; rude.
• adj. Requiring strength or vigor.
• adj. Sensible (of intellect etc.); straightforward, not given to or confused by uncertainty or subtlety.
• adj. (systems engineering) Designed or evolved in such a way as to be resistant to total failure despite partial…
• adj. (software engineering) Resistant or impervious to failure regardless of user input or unexpected conditions.
• adj. (statistics) Not greatly influenced by errors in assumptions about the distribution of sample errors.