(Sense uncertain: ? Threatening or in danger to fall. Cf. 6) Obsolete.

? Menacing. Obsolete.

That threats; threatening, menacing.

That menaces or threatens; threatening.

transferred. Of the clouds, sky, weather, etc.: Gloomy, dark, threatening. Sometimes figurative of attendant circumstances. Occasionally…

Threatening.

That threatens; conveying or indicating a threat or menace; portending some impending evil.

Expressing, uttering, or conveying a threat; (also) of the nature of a threat or menace; threatening, menacing.

Full of threats; threatening.

That threatens.

Menacing, threatening; of a threatening character; full of threats or menaces.

Threatening.

Threatening; that constitutes a menace.

Threatening.