1. Support that is slow to respond, weak in intensity, or lacking enthusiasm and vigor
The government's sluggish support for the project delayed its implementation by months.
O apoio lento do governo ao projeto atrasou sua implementação em meses.
2. Lukewarm or half-hearted assistance or backing
Despite sluggish support from investors, the startup managed to survive.
Apesar do apoio fraco dos investidores, a startup conseguiu sobreviver.