flighty Antonyms

worthy of trust trustworthy true thoughtful sure staunch staid stable sound sedate ruminative trusty truthful unfailing as good as one's word as steady as a rock hyperfocused honourable good as one's word nonvolatile unwavering virtuous upright unimpeachable responsible reputable considerable conscientious concentrated committed clever certain careful august attentive astute constant credible dedicated reliable regular principled predictable incorruptible honest good faithful ethical dependable alert