highflying

adjectives

moving upward or along at a considerable height
"some highflying fighter pilot fired a cannon shell into it"
is similar to
moving or going or growing upward
"the ascending plane"; "the ascending staircase"; "the ascending stems of chickweed"
extravagant or ambitious or extreme in aims or opinions
"they did not understand what had happend at the once highflying company"
is similar to
not subject to restraint
"unrestrained laughter"