
massiv
massive
In a figurative sense: very strong, intense, extensive, or serious.
Der Plan stieß auf massiven Widerstand in der Bevölkerung.
The plan met with massive resistance among the population.
massive / solid
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massive
In a figurative sense: very strong, intense, extensive, or serious.
Der Plan stieß auf massiven Widerstand in der Bevölkerung.
The plan met with massive resistance among the population.

solid
Made of one single, continuous piece of material, not hollow or veneered. Describes something as solid and heavy.
Der Tisch ist aus massivem Eichenholz gefertigt und wiegt über 100 Kilo.
The table is made of solid oak and weighs over 100 kilos.

massive
Large, bulky, and heavy-looking. Refers to the outward appearance of objects or people.
Die alte Festung hat sehr massive Mauern.
The old fortress has very massive walls.

awesome
Colloquial, especially in youth slang: very good, great, awesome.
Die Stimmung auf dem Konzert gestern war einfach nur massiv!
The atmosphere at the concert yesterday was just awesome!
The meaning of 'massiv' (massive/solid) depends strongly on the noun. With abstract nouns like 'Kritik' (criticism), it means 'heftig' (intense/severe). With materials like 'Holz' (wood), it means 'solide/nicht hohl' (solid/not hollow).
Der Minister steht wegen der Affäre unter massivem Druck.
The minister is under massive pressure because of the affair.
In a figurative sense, 'massiv' (massive) describes a large extent or a high intensity. Typical collocations are 'massive Probleme' (massive problems), 'massive Kritik' (massive criticism), or 'massive Auswirkungen' (massive effects).
Die Bauarbeiten verursachen massive Lärmbelästigung.
The construction work is causing massive noise pollution.
When 'massiv' (solid) describes materials, it means that something consists entirely of that material and is not hollow. It is often used for high-quality or heavy objects.
Der Ring ist aus massivem Gold und sehr wertvoll.
The ring is made of solid gold and is very valuable.
The meaning 'großartig' (great) or 'toll' (awesome) is purely youth slang and very informal. In formal or neutral conversations, this usage should definitely be avoided.
Das Konzert gestern war einfach massiv!
The concert yesterday was simply awesome!
strong
„Stark“ and „massiv“ can both describe a high degree of criticism, a reaction, or a burden. „Stark“ remains a general indication of degree, while „massiv“ emphasizes extraordinary force or a particularly serious extent. „Stark“ works for a high but ordinary level of intensity, while „massiv“ describes a distinctly more severe effect.

Der Bürgermeister wurde nach dem schweren Skandal massiv kritisiert.
The mayor was massively criticized after the serious scandal.
Der Bürgermeister wurde für seine Entscheidung stark kritisiert.
The mayor was strongly criticized for his decision.