的 motivation / '-al'

My motivation is to fuck up my TEKI (teki =敵= enemy).

I promise that my motivation is only to catch white fish, not fish of color.

-al ★★★★★ SUF

Mostly this is used as a SUFFIX which turns a noun into an adjective. Like how politics becomes 'political,' or how education becomes 'educational.' or economics becomes 'economical.' In Japanese, 政治　becomes　政治的な.

motive, not only for crimes. ★★★★☆
目 (eye) + 的 (motivation / '-al') = 目的 (motive, not only for crimes.)

automatic ★★★★☆
自 (my own) + 動 (movement) + 的 (motivation / '-al') = 自動的 (automatic)

ideal. ★★★☆☆
理 (reason) + 想 (idea/imagination) + 的 (motivation / '-al') = 理想的 (ideal.)

the basics ★★★☆☆
基 (basis) + 本 (book / the real) + 的 (motivation / '-al') = 基本的 (the basics)

the basics (the emphasis is: the minimum knowledge)

Also means fundamentally (emphasizing the essential bits that various things or ideas have in common)

rational OR reasonable ★☆☆☆☆
合 (to suit) + 理 (reason) + 的 (motivation / '-al') = 合理的 (rational OR reasonable )

rational OR reasonable (i.e. get up at a reasonable hour or a reasonable compromise - like 'logical,' but used even if there is not a mathematical proof involved. Also has the nuance of efficient - the boss says to the worker 仕事合理的に進めなさい！　（しごと　ごうりてき　に　すすめ　なさい！）, meaning, 'Stop wasting our time and money! Work in a more efficient, rational way.'