positive adj.

1 certain

VERBS be, seem, sound

ADV. absolutely, quite I'm absolutely positive it was him. | fairly

PREP. about She seemed fairly positive about it. | of Are you positive of your facts?

2 hopeful and confident/encouraging

VERBS appear, be, feel, seem, sound | remain

ADV. distinctly, extremely, highly, overwhelmingly, really, very He took a highly positive view of the matter. | entirely, wholly | fairly, mildly, moderately, quite | broadly, essentially, generally | apparently, seemingly

PREP. about sounding very positive about his chances

3 showing that sth has happened/is present

VERBS be, prove, test The test proved positive.

ADV. strongly, weakly (both technical)

PREP. for He tested positive for HIV.