Of sounds or voices: Strongly audible; making a powerful impression on the sense of hearing. Hence, with agent-noun: That (speaks, sings, etc.)…

Intense in degree or quality; not mild or weak; severe, violent, strong. of the voice, a noise. Obsolete.

Of conditions or qualities: present to a high degree. Also: relating to such conditions or qualities. Of the voice, a sound: not soft or muted…

Considerable in degree, intensity, or extent. Of the voice, sound, etc.: loud; full, resounding; very noisy.

Of voice, sound: Powerful, loud. Obsolete.

Of sound: loud, strong.

Rough, loud or violent in sound.

Of sound: Great in volume, loud. (Cf. A. 6b.)

Of the voice, sound, etc.: loud; full, resounding.

Of a sound, voice, etc.: resembling a roar; extremely loud.

transferred. Making a noise like thunder, sounding very loudly; of sound, As loud as thunder.

Having a loud or full voice or sound; sounding or talking loudly, or with great enthusiasm, vigour, etc. Of a sound: loud or sonorous.

Resembling thunder in its loudness.

full of or characterized by thunder, loud noise, or violent utterance; thundery; thundering.

Making a noise like thunder: = thunderous, adj. 2. Obsolete.

trump-like adj., trump-maker.

Having a full mouth; sounding loudly. Obsolete.

Of great volume or size; massive, bulky, large, swelling.

Of a sound: loud; vigorous, resounding.

= altisonant, adj.

Of actions (esp. those involving physical effort, as a blow, a shout): Vigorous. Of a meal, etc.: ‘Hearty’, abundant.

Pertaining to, or loaded with, thunder.

Of a sound: loud and piercing. Also in extended use.

Thundering, stunning, noisy.

Sounding like the clarion, loud and clear.

(in various senses see the verb).

Somewhat loud.

thundering (figurative).

Thundering, loud-sounding.

Full of or charged with thunder; loosely, thundering, sounding like thunder.

Of the volume of a sound: raised, increased; loud.

Loud, violent, forceful (see also quot. 1960).