Strong  —adj. (stronger; strongest) 1 able to resist; not easily damaged, overcome, or disturbed. 2 healthy. 3 capable of exerting great force or of doing much; muscular, powerful. 4 forceful in effect (strong wind). 5 firmly held (strong suspicion). 6 (of an argument etc.) Convincing. 7 intense (strong light). 8 formidable (strong candidate). 9 (of a solution or drink etc.) Not very diluted. 10 of a specified number (200 strong). 11 gram. (of a verb) forming inflections by a change of vowel within the stem (e.g. Swim, swam). —adv. Strongly.  come on strong behave aggressively. Going strong colloq. Continuing vigorously; in good health etc.  strongish adj. Strongly adv. [old english]