Synonyms for strong concern

Synonyms for strong

powerful (mighty, potent, influential >>)
robust (sturdy, durable, rugged >>)
solid (heavy, tough, firm >>)
intense
hard
significant (substantial, decisive, important >>)
stable
sharp
convincing
big
highly (heavily, badly, strictly >>)
firmly
effective
powerfully
muscular
persuasive

See all synonyms for strong

Synonyms for concern

worry (bother, disturb, perturb >>)
relate (pertain, affect, involve >>)
interest (care, alarm, trouble >>)
fear (anxiety, apprehension, dismay >>)
deal (attributable, company, business concern >>)
unease (uneasiness, disquiet, disquietude >>)
respect

See all synonyms for concern